Jawabanmu

2014-09-03T22:57:27+07:00
A. (7p-3) - (3p +8) = 4p -12
b. (-4ab +a - 7) - (7a - 4ab - 2 ) = -6a -5
2014-09-03T23:01:06+07:00
1. 7p - 3 - (3p + 8) = 4p - 11

2. -4ab + a - 7 - ( 7a - 4ab - 2) = -6a - 5

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