Решите уравнения! 125 : у =25,2х+7х=72

Question

Решите уравнения! 125 : у =25,2х+7х=72

Answer 1

1) 125 : y = 25
y = 125 : 25 = 5
y = 5
2) 2х + 7х = 72
9х = 72
х = 72 : 9
х = 8

Answer 2

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