Как решить 5 (1-x) + 8x=-2 - (2x+3)

5 (1-х) + 8 х = - 2 - (2 х+3)

5*1 - 5*х + 8 х = - 2 - 2 х - 3

5 + 3 х = - 5-2 х

3 х+2 х=-5 - 5

5 х = - 10

х = (-10) : 5

х = - 2

проверим:

5 (1 - (-2)) + 8 * (-2) = - 2 - (2 * (-2) + 3)

5 (1+2) - 16 = - 2 - (-4+3)

15 - 16 = - 2 - (-1)

-1 = - 2+1

-1 = - 1

5 (1-х) + 8 х=-2 - (2 х+3)

5-5 х+8 х=-2+2 х-3

-5 х+8 х-2 х=-2-3-5

х=-10