1) -2(х+5)+3=2-3(х+1) - вопрос №125323121435178 от Vov1111 29.04.2022 05:05

Question

Математика: 1) -2(х+5)+3=2-3(х+1)

Vov1111 · Answer

-2(x + 5) + 3 = 2 - 3(x + 1)
-2x - 10 + 3 = 2 - 3(x + 1)
-2x-10 + 3 = 2 - 3(x + 1)
-2x-7 = 2 - 3(x + 1)
-2x - 7 = 2-3(x + 1)
-2x - 7 = 2-3x - 3
-2x - 7 = 2 - 3x-3
-2x - 7 = -1 - 3x
-2x - 7 = -1 - 3x
-2x - 7 = -3x - 1
-2x - 7 = -3x - 1
-2x - 7 + 7 = -3x - 1 + 7
-2x = -3x + 6
-2x = -3x + 6
-2x + 3x = -3x + 6 + 3x

x=6