Надіюсь почерк зрозумілий)
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Пошаговое объяснение:
4(х - 2) = -5х
4х - 8 = -5х
4х + 5х = 8
9х = 8
х = 8/9
-(4х - 7) = -7х
-4х + 7 = -7х
-4х + 7х = -7
3х = -7
х = -7/3
х = -2 1/3
-6(х - 1) = 13
-6х + 6 = 13
-6х = 13 - 6
-6х = 7
х = -7/6
х = -1 1/6
2(х + 1) = 9(х - 3)
2х + 2 = 9х - 27
2х - 9х = -27 - 2
-11х = -29
х = 29/11
х = 2 7/11
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Answers & Comments
Надіюсь почерк зрозумілий)
.......
Пошаговое объяснение:
4(х - 2) = -5х
4х - 8 = -5х
4х + 5х = 8
9х = 8
х = 8/9
-(4х - 7) = -7х
-4х + 7 = -7х
-4х + 7х = -7
3х = -7
х = -7/3
х = -2 1/3
-6(х - 1) = 13
-6х + 6 = 13
-6х = 13 - 6
-6х = 7
х = -7/6
х = -1 1/6
2(х + 1) = 9(х - 3)
2х + 2 = 9х - 27
2х - 9х = -27 - 2
-11х = -29
х = 29/11
х = 2 7/11