Question

-308=4A-9(8+7A) help !!

Answer 1

Answer: a=-1

Step-by-step explanation:

Answer 2

Answer:  A = 4

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Work Shown:

-308=4A-9(8+7A)

-308=4A-9(8)-9(7A) ... distribute

-308=4A-72-63A .... multiply

-308=-72-59A ....combine like terms

-308+72=-72-59A+72 ... add 72 to both sides

-236 = -59A

-59A = -236

-59A/(-59) = -236/(-59) ... divide both sides by -59

A = 4

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Explanation:

The idea is to first distribute and combine like terms. From there you follow PEMDAS in reverse to isolate A fully. That's why I added 72 to both sides to undo the subtraction, and divided both sides by -59 to undo the multiplication.