3 years ago

3a + 21 = 7 - 4a what's the answer

Mathematics

2 answers:

denis23 [38]3 years ago

8 0

After simplifying a= -2

scoundrel [369]3 years ago

5 0

3a + 21 = 7 - 4a

3a + 4a = 7 - 21

7 a = -14

a = - 14 / 7

a = - 2

hope this helps!

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