Ответ:
Пошаговое объяснение:
6) 26 – (17 – 2x) = 5x
26 - 17 + 2х = 5х
26 - 17 = 5х - 2х
9 = 3х
х = 9 : 3 х = 3
7) 7х – (3 + 2х) = х + 9
7х - 3 - 2х = х + 9
7х - 2х - х = 9 + 3
4х = 12
х = 12 : 4 х = 3
8) 3x – (10 – 9x) = 22x
3х - 10 + 9х = 22х
3х + 9х - 22х = 10
-10х = 10
х = 10 : (-10) х = -1
9) 13 – (2x – 5) = x – 3
13 - 2х + 5 = х - 3
-2х - х = -3 - 13 - 5
-3х = -21
х = -21 : (-3) х = 7
10) 6х – (х + 4) = 16 – 5х
6х - х - 4 = 16 - 5х
6х - х + 5х = 16 + 4
10х = 20
х = 20 : 10 х = 2
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Ответ:
Пошаговое объяснение:
6) 26 – (17 – 2x) = 5x
26 - 17 + 2х = 5х
26 - 17 = 5х - 2х
9 = 3х
х = 9 : 3 х = 3
7) 7х – (3 + 2х) = х + 9
7х - 3 - 2х = х + 9
7х - 2х - х = 9 + 3
4х = 12
х = 12 : 4 х = 3
8) 3x – (10 – 9x) = 22x
3х - 10 + 9х = 22х
3х + 9х - 22х = 10
-10х = 10
х = 10 : (-10) х = -1
9) 13 – (2x – 5) = x – 3
13 - 2х + 5 = х - 3
-2х - х = -3 - 13 - 5
-3х = -21
х = -21 : (-3) х = 7
10) 6х – (х + 4) = 16 – 5х
6х - х - 4 = 16 - 5х
6х - х + 5х = 16 + 4
10х = 20
х = 20 : 10 х = 2