3 years ago

How do you do -9(x+5-9)=9--9

Mathematics

1 answer:

alina1380 [7]3 years ago

6 0

First, we use distributive property:

-9x - 45 + 81 = 9x - 9

Then, combine like terms: -45 + 81

-9x + 36 = 9x - 9

Add 9 to both sides.

-9x + 45 = 9x

Add 9x to both sides

45 = 18x

Divide both sides by 18

2.5 = x

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