Question

2+3x=-2x-13
решить уравнение ​

Answer 1

$2 + 3x = - 2x - 13 \\ 3x + 2x = - 13 - 2 \\ 5x = - 15 \\ x = - 3$

Answer 2

2 + 3x = -2x - 13

3х + 2х = -13 - 2

5х = -15

х = -15 / 5

х = -3

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2 + 3 · (-3) = -2 · (-3) - 13

2 + (-9) = 6 - 13

-7 = -7