3a-28-7a=10a I need it fast
2 answers:
Step-by-step explanation:
hope it will helpful to you
Answer:
a=-2
Step-by-step explanation:
Combine common variables on both sides.
3a-7a-28=10a
-4a-28=10a
Add variables to other side
-28=14a
Divide each side by 14
a=-2
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10•8=80
so something times 80 will equal 400
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