2. 3(6a – 7) – 2(4a – 9) = 4 (5a – 11) – 19
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Step-by-step explanation:
18a-21-8a+18=20a-44-19
10a-3=-63+20a
-3+63=20a-10a
60a=10a
6=a
Answered by
0
Answer:
18a-21-8a+18=20a-44-19
18a-8a-20a=-44-19+21-18
-10a=-60
signs canceled
so a=6
Step-by-step explanation:
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