14 — x = 54 — 9x

9x — x = 54 — 14

8x = 40

x = 40 : 8

x = 5

21+3x=7x-11

— 7x + 3x = — 21 = 11

— 4 x = — 32

x = — 32 : (-4)

x = — 8

-17-6x=5x+27

— 5x — 6x = 17 + 27

— 11x = 44

x = 44 : (-11)

x = — 4
(2x-1)-(x-7)=0

2x — 1 — x + 7 = 0

2x — x = 1 — 7

1x = — 6

x = — 6 : 1

x = — 6
6-(x+2)=-(7+4x)

6 — x + 2 = — 7 — 4x

4x — x = — 7 — 6 — 2

3x = — 15

x = — 15 : 3

x = — 5
5(2x-1)-6=3(x+7)

10x — 5 — 6 = 3x — 3

10x — 3x = 5 + 6 — 3

x = 8 : 7

x= 8/7
7-2(3-x)=5-4(x-1)

7 — 6 — 2x = 5 — 4x — 4

1 — 2x = 1 — 4x

4x — 2x = 1 — 1

2x = 0

x = 0
2(x-1)+5=4x+3

2x — 2 + 5 = 4x + 3

2x — 4x = 2 — 5 + 3

— 2x = 0

x = 0

4(2-x)-8x=7(1-x)

8 — 4x = 8x = 7 — 7x

7x — 4x — 8x = 7 — 8

— 5x = — 1 : (-5)

x = 1/5