Question

3 (х-1)-57=5 (1-2х)-3 (-х+7)

Answer 1

3 ( х - 1 ) - 57 = 5 ( 1 - 2х ) - 3 ( -х + 7 )

3х - 3 - 57 = 5 - 10х + 3х - 21

3х + 10х - 3х = 5 - 21 + 57 + 3

10х = 44

х = 44 ÷ 10

х = 4,4.

Ответ : х = 4,4.

Удачи)))

Answer 2

$3(x - 1) - 57 = 5(1 - 2x) - 3( - x + 7) \\ \\ 3x - 3 - 57 = 5 - 10x + 3x - 21 \\ \\ 3x + 10x - 3x = 5 - 21 + 60 \\ \\ 10x = 44 \\ \\ x = 44 \div 10 \\ \\ x = 4.4$

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