Simplification of algebraic expression: –5(a + b) + 2(2a – b) + 7 is (a) –7b + a + 7 (b) –7b – a + 7 (c) a – 7b – 7 (d) a + 7b +7
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Step-by-step explanation:
–5(a + b) + 2(2a – b) + 7
-5a-5b+4a-2b+7
-5a+4a-5b-2b+7
-a-7b+7
Rearranging the terms, we get
–7b – a + 7
b) –7b – a + 7
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