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Simplify each algebraic expression. 2a +3(a +7)–(3a +3)
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3 votes
Simplify each algebraic expression.
2a +3(a +7)–(3a +3)

User Eunhye
by
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1 Answer

13 votes

Answer:

2a+18

Explanation:


2a +3(a +7)-(3a +3)\\\\Expand\: 3(a +7) :\\3a+21\\\\=2a+3a+21-\left(3a+3\right)\\\\-(3a+3)=-3a-3\\\\=2a+3a+21-3a-3\\\\Simplify\\\\=2a+18

User Preets
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