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4 - 4p + 3p +15 = 8
- 4p + 3p = 8 - 4 - 15
- 1p = - 11
p = -11/-1
p = 11
b). 4(2q -1) + 10 = 6 (4 + q)
8q - 4 + 10= 24 + 6q
8q - 6q = 24 - 10 +4
2q = 18
q = 18/2
q = 9