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7x-12=4(x-9)-9x This is pre algebra
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7x-12=4(x-9)-9x This is pre algebra

User Chochos
by
7.0k points

1 Answer

3 votes

Answer:


x=-2

Explanation:

Lets solve for x.


7x-12=4(x-9)-9x

Apply the distributive property in
4(x-9).


7x-12=4x-36-9x

Subtract
9x from
4x.


7x-12=-5x-36

Subtract
7x from both sides of the equation.


-12=-5x-36-7x

Subtract
7x from
-5x.


-12=-12x-36

Add 36 to both sides of the equation.


24=-12x


-12x=24

Divide both sides of the equation by -12.


x=-2

User Catalandres
by
7.0k points
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