2.14 найдите корень уравнений

Question

2.14 найдите корень уравнений

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Answer 1

(3m + 5)/4 = (5m + 1)/3
3(3m + 5) = 4(5m + 1)
9m + 15 = 20m + 4
9m - 20m = 4 - 15
- 11m = - 11
m = 1