Ответ:
Пошаговое объяснение:
3x - 7 = -16
3х = -16 + 7
3х = -9
х = -3
х + 3 = 2(x - 4)
х + 3 = 2х - 8
х - 2х = -8 - 3
-х = -11
х = 11
4 - 2(x + 1) = 6 - 2x
4 - 2х - 2 = 6 - 2х
-2х + 2х = 6 - 4 + 2
0 = 0
6 - 7x = 34
-7х = 34 - 6
-7х = 28
х = - 4
2x + 3 = 5
2х = 5 - 2
2х = 2
х = 1
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Ответ:
Пошаговое объяснение:
3x - 7 = -16
3х = -16 + 7
3х = -9
х = -3
х + 3 = 2(x - 4)
х + 3 = 2х - 8
х - 2х = -8 - 3
-х = -11
х = 11
4 - 2(x + 1) = 6 - 2x
4 - 2х - 2 = 6 - 2х
-2х + 2х = 6 - 4 + 2
0 = 0
6 - 7x = 34
-7х = 34 - 6
-7х = 28
х = - 4
2x + 3 = 5
2х = 5 - 2
2х = 2
х = 1