решите уравнение b x 5 - 89 = 66 и 72 - 130 : x = 46. Created by kotSuper1. matematika-ru

решите уравнение b x 5 - 89 = 66 и 72

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решите уравнение b x 5 - 89 = 66 и 72 - 130 : x = 46

asanali7182 Bx5=66+89
bx5=155
bx=155:5
bx=31

72-130:x=46
130:x=72-46
130:x=26
x=130:26
x=5

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