-144-9x=7x-28x

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Solution for -144-9x=7x-28x equation:


Simplifying
-144 + -9x = 7x + -28x

Combine like terms: 7x + -28x = -21x
-144 + -9x = -21x

Solving
-144 + -9x = -21x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '21x' to each side of the equation.
-144 + -9x + 21x = -21x + 21x

Combine like terms: -9x + 21x = 12x
-144 + 12x = -21x + 21x

Combine like terms: -21x + 21x = 0
-144 + 12x = 0

Add '144' to each side of the equation.
-144 + 144 + 12x = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 12x = 0 + 144
12x = 0 + 144

Combine like terms: 0 + 144 = 144
12x = 144

Divide each side by '12'.
x = 12

Simplifying
x = 12

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