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Find the value of 3x + 2 when 7 + x = 5

User Natanya
by
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2 Answers

1 vote

Answer:

-4

Explanation:

User Ggordon
by
8.1k points
3 votes
Work out the second equation first.
7 + x= 5
-7 -7
x = -2
Plug in x.
3(-2)+2=?
-6+2=4