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3a-2b=14. 3a+2b=28
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3a-2b=14. 3a+2b=28 ..​-example-1

1 Answer

1 vote

Answer:

a = 7

b = 3 1/2

Explanation:

if you add the equations together then the 'b' will zero out

6a = 42

a = 7

substitute 7 for 'a' to solve for 'b'

3(7) - 2b = 14

21 - 2b = 14

-2b = -7

b = 7/2 or 3 1/2

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