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09-02-2017
Mathematics

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Write an equivalent expression for 4(3a+7) +(2a+5) if a = 5 is the solution to both expressions the same?

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09-02-2017

substitute 8 for a
4[3(8)+7] + 2(8) +5
=4[24+7] +16+5
=4(31)+21
=124+21
=155

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