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21-08-2019
Mathematics

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3(7a+ 4) – 5(5 – 2a)

Can someone tell me the answer step by step, please?

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Аноним Аноним

21-08-2019

3(7a+ 4) – 5(5 – 2a)

Multiply the first bracket by 3

Multiply the second bracket by 5

(3)(7a)(3)(4)(-5)(5)(-5)(-2a)

21a+12-25+10a

21a+10a+12-25 ( rearranging)

31a-13

Answer: 31a-13

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