Question

80 *( x + 7) = 1600​

Answer 1

Дано:

80 * ( х + 7 ) = 1600

Решение:

х + 7 = 1600 : 80

х + 7 = 20

х = 20 - 7

х = 13

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80 * ( 13 + 7 ) = 1600

80 * 20 = 1600

1600 = 1600

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Answer 2

Ответ:х=13...........