Автор - alekseevak846

а) -8×(2х-3) = 12×(х +4);
б)0,2×(х – 8) = 0,4×(x-3);
в)
1 frac{1}{3} times (2y + 5) = frac{1}{2} times (3y + 25)

Ответ

Автор - olesssiaa

а.) -8(2х - 3) = 12(х + 4)

-16х - 12х = 48 - 24

-28х = 24

х = -6/7

б.) 0.2(х - 8) = 0.4(х - 3)

0.2х - 1.6 = 0.4х - 1.2

0.2х - 0.4х = -1.2 + 1.6

-0.2х = 0.4

х = -2

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