6- 2) = 4.
= 36
EXERCISE 9B
tions and verify the answer in each case:
-2
3. x - 7 = 6
4. x - 2 = -5
3x
7 = 15
7. 12
8.
15
5
=3
11. 3(x + 6) = 24 12. 6x + 5 = 2x + 17
15. 3(x + 2) - 2x - 1) - 7
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