Hello!
5 - 4a = 7 + a
-4a - a = 7 - 5
-5a = 2
a = 2/-5
a = -2/5
Answer:
Explanation:
- 4a - a = -5 + 7
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check
5 - 4(-2/5) = 7 + (-2/5)
0 = 0
the answer is good
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