CBSE Class 7 Answered
Simplify : 3(a + b) - 2(2a - b) + 4a - 7.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Consider:
3(a + b) - 2(2a - b) + 4a - 7
= 3a + 3b - 4a + 2b + 4a - 7
= (3a - 4a + 4a) + (2b + 3b) - 7
= 3a + 5b - 7
3(a + b) - 2(2a - b) + 4a - 7
= 3a + 3b - 4a + 2b + 4a - 7
= (3a - 4a + 4a) + (2b + 3b) - 7
= 3a + 5b - 7
Answered by | 04 Jun, 2014, 03:23: PM
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