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Matematyka wokół nas 1. Zeszyt ćwiczeń cz. 2 - ukr

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Matematyka 1

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Matematyka 2001

Matematyka 2001. Zeszyt ćwiczeń cz. 1 

Matematyka 2001. Zeszyt ćwiczeń cz. 2

Matematyka na czasie! 1

Matematyka wokół nas 1

Matematyka z plusem 1

Matematyka z plusem 1. Podręcznik

Matematyka z plusem 1. Zbiór zadań

Matematyka z plusem 1. Zeszyt ćwiczeń

Policzmy to razem 1

Podstawiamy x = -1 do każdego z równań: A. 15⋅(−1)+17=2   −15+17=2 2=2 B. 5⋅(−1)+3=2⋅(−1)

Równania równoważne są to równania, które mają taki sam zbiór rozwiązań. x+7=21x+3   x−21x=3−7   −20x=−4  /  :(−20)    x=204​=51​     A. 20x+7=3

Podstawiamy x = -1 do każdego z równań: A. <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/d09f94149fb997ddd0e751cfd6e3b5b4ff4795bb0fd3f845b4ecd1fc5979d7ba_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/d09f94149fb997ddd0e751cfd6e3b5b4ff4795bb0fd3f845b4ecd1fc5979d7ba_big.svg" type="image/svg+xml"></object>   <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/72cba43717d45f8719e72bc160feeaac20fd2de282e132b4cd25447facc85251_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/72cba43717d45f8719e72bc160feeaac20fd2de282e132b4cd25447facc85251_big.svg" type="image/svg+xml"></object> <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/d3d11b26361eb81f745e3f513c2393575b536c57b7424d3a9f3c32cdb0c7770a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/d3d11b26361eb81f745e3f513c2393575b536c57b7424d3a9f3c32cdb0c7770a_big.svg" type="image/svg+xml"></object> B. <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/0f7bc48e491a6e1815d9c87e9c8c5a88b099ae961b35de422640a2a3d639f301_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/0f7bc48e491a6e1815d9c87e9c8c5a88b099ae961b35de422640a2a3d639f301_big.svg" type="image/svg+xml"></object>

Równania równoważne są to równania, które mają taki sam zbiór rozwiązań. <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/05f62486f7c4c73b483396d639ddab963d3f303f2e526a0d2cc011fbca98bde3_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/05f62486f7c4c73b483396d639ddab963d3f303f2e526a0d2cc011fbca98bde3_big.svg" type="image/svg+xml"></object>   <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/171e88aa1c1b9a540aab175daf736a914818250300e1aa4d97822a52bd2da3fa_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/171e88aa1c1b9a540aab175daf736a914818250300e1aa4d97822a52bd2da3fa_big.svg" type="image/svg+xml"></object>   <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/152c477255ffbd0af7051aeb5f814c28fcf06e4f099e7d692cd0e8b1091d5be0_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/152c477255ffbd0af7051aeb5f814c28fcf06e4f099e7d692cd0e8b1091d5be0_big.svg" type="image/svg+xml"></object>  /  <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/8efe856a582b159ecd893133c65fdf83ee73e14d0a0c2d35d79f36202d7290ae_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/8efe856a582b159ecd893133c65fdf83ee73e14d0a0c2d35d79f36202d7290ae_big.svg" type="image/svg+xml"></object>    <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/1e753ad3da7f7d66e746c13618d9244f15520170090046ef3adf99f05580df4a_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/1e753ad3da7f7d66e746c13618d9244f15520170090046ef3adf99f05580df4a_big.svg" type="image/svg+xml"></object>     A. <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/2a2c725f712c5825ba69978a7131c82c8be9d8f5885c4c67bbf6d8b8af139c5e_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/2a2c725f712c5825ba69978a7131c82c8be9d8f5885c4c67bbf6d8b8af139c5e_big.svg" type="image/svg+xml"></object>

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