70.9k views
3 votes
Solve for a.

21a + 17 + 15a = -48

A.) 65
B.) 65/36
C.) -65/36
D.) -65

User NZJames
by
6.1k points

1 Answer

1 vote
21a+17+15a=-48
Combine like terms. The only like terms are 21a and 15a
36a+17-=48
Subtract 17 from -48
36a=-65
Divide 36 from both sides
-65/36
C) is your answer
hope this helps!

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