Asked by betty boop

solve this one step by step : 7a-b=15a, for a
Answered by Ms. Sue
Betty or Evelyn -- please use the same name for your posts.

I showed you how to do your other problems. Now it's your turn.

I'll be glad to check your answer.

Answered by evelyn
7a-b=15a/
15a-15a=b-15a/
7/7a=15-b/7
7=a
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