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11a + 9 = 4a + 30 How do I solve this problem. Can someone help me get the answer?
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11a + 9 = 4a + 30 How do I solve this problem. Can someone help me get the answer?

User MacMark
by
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2 Answers

5 votes
11a + 9 = 4a + 30 take the a's to one side and the numbers to the other

11a - 4a = 30 - 9

7a = 21

a = 21/7

a = 3
User MHewison
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You would subtract 4a from both sides to get 7a + 9 = 30. Then you should subtract 9 from both sides to get 7a = 21. Then divide both sides by 7. Final answer: a=3
User Nilly
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