Simplification of algebraic expression:
–5(a + b) + 2(2a – b) + 7 is
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Answer=
= -5(a + b) + 2(2a - b) +7
= [ -5a -5b ] + [ 4a - 2b ] +7
= -5a +4a -5b -2b +7
= -a -7b +7
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