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a. 5 /3 x = 4
12 x = 6
x = 1/2
6 x - 7 = 8
6 x = 8 + 7
6 x = 15
x = 15/6 = 5 /2
8 - 7 x = 57
- 7 x = 57 + 7
- 7 x = 64
x = - 64/7
2 x - 11 = 7 x + 4
2 x - 7 x = 4 + 11
- 5 x = 15
x = - 3
6 - 3 x = 15 + 4 x
- 3 x - 4 x = 15 - 6
- 7 x = 9
x = - 9/7
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a. 5 /3 x = 4
12 x = 6
x = 1/2
6 x - 7 = 8
6 x = 8 + 7
6 x = 15
x = 15/6 = 5 /2
8 - 7 x = 57
- 7 x = 57 + 7
- 7 x = 64
x = - 64/7
2 x - 11 = 7 x + 4
2 x - 7 x = 4 + 11
- 5 x = 15
x = - 3
6 - 3 x = 15 + 4 x
- 3 x - 4 x = 15 - 6
- 7 x = 9
x = - 9/7