Ответ:
Пошаговое объяснение:
1)
5х+(3x-3)=6x+11
5x + 3x - 3 = 6x + 11
8x - 3 = 6x + 11
8x - 6x = 11 + 3
2x = 14
x = 14 : 2
x = 7
2)
(x+7)-(2x+9)=-13
x + 7 - 2x - 9 = -13
-x - 2 = -13
x = 13 - 2
x = 11
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Ответ:
Пошаговое объяснение:
1)
5х+(3x-3)=6x+11
5x + 3x - 3 = 6x + 11
8x - 3 = 6x + 11
8x - 6x = 11 + 3
2x = 14
x = 14 : 2
x = 7
2)
(x+7)-(2x+9)=-13
x + 7 - 2x - 9 = -13
-x - 2 = -13
x = 13 - 2
x = 11