Question

Решить уравнение 2*(х+3)=4х-20

Answer 1

$2 \times (x + 3) = 4x - 20 \\ 2(x + 3) = 4x - 20 \\ 2x + 6 = 4x - 20 \\ 2x - 4x = - 20 - 6 \\ - 2x = - 26 \\ x = - 26 \div ( - 2) \\ x = 13$

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Answer 2

2х+6=4х-20
2х-4х=-6-20
-2х=-26
х=13