Question

PLEASE HELP !!!
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~MEDAL WILL BE REWARDED~
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Simplify the following expression.

(53x + 79y) - (-30x + 7y)

A. 23x + 72y

B. 83x + 72y

C. 23x + 86y

D. 83x + 86y
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Answer 1

(53x + 79y) - (-30x + 7y)
We first need to distribute the minus sign.
53x + 79y + 30x - 7y
-(-30x) = 30x
-(7y) = -7y
Now all we need to do is group like terms.
53x + 79y + 30x - 7y
53x + 30x + 79y - 7y
53x + 30x = 83x
79y - 7y = 72y
83x + 72y <----- Answer. (:

Answer 2

I have some more...

Answer 3

Simplify the following expression.

(50x - 23y) + (38x + 61y)
27x + 84y
27x + 38y
88x + 38y
88x + 84y