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29 votes
29 votes
Equivalent expression: 3 + 4(2z - 1)

User Kurtcorbett
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2.6k points

2 Answers

20 votes
20 votes

Answer:

-1 + 8z

Explanation:

First use the distributive property of multiplication (Just multiply 4 with all numbers in the parenthesis):

3 + 4(2z - 1)

3 + 8z - 4

Group like terms:

3 + 8z - 4

-1 + 8z

The answer is -1 + 8z

Hope this helped.

User Nazila
by
3.0k points
12 votes
12 votes

Answer:

8z - 1

Explanation:

Given

3 + 4(2z - 1) ← multiply each term in the parenthesis by 4

= 3 + 8z - 4 ← collect like terms

= 8z - 1

User Ryw
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2.6k points