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Write an equivalent expression to 4(3a + 7) + 3(2a + 5) if a = 5, than are the expressions equivalent?

Write an equivalent expression to 4(3a + 7) + 3(2a + 5) if a = 5, than are the expressions equivalent?
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5 votes
Write an equivalent expression to

4(3a + 7) + 3(2a + 5)
if a = 5, than are the expressions equivalent?

User Pocoa
by
7.4k points

1 Answer

1 vote
1. Distributive Property.
4(3a + 7) + 3(2a + 5)
12a + 28 + 6a + 20

2. Combine like terms
12a + 28 + 6a + 20
18a +48


The equivalent expression is 18a + 48. If a = anything then the expressions will still be equivalent.
User Sijan Gurung
by
8.4k points
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