megankruppa megankruppa

28-06-2017
Mathematics

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Evaluate 4a+7b+3a−2b for a =5 and b=−3.

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Juliette619 Juliette619

28-06-2017

The answer is 20. I hope this helps.

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28-06-2017

4a + 7b + 3a - 2b
Combine like terms
7a + 5b
Plug in the values for a and b.
7(5) + 5(-3)
35 - 15
20

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