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

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Solution for 7(x+12)=9(x-4) equation:


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

Reorder the terms:
7(12 + x) = 9(x + -4)
(12 * 7 + x * 7) = 9(x + -4)
(84 + 7x) = 9(x + -4)

Reorder the terms:
84 + 7x = 9(-4 + x)
84 + 7x = (-4 * 9 + x * 9)
84 + 7x = (-36 + 9x)

Solving
84 + 7x = -36 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
84 + 7x + -9x = -36 + 9x + -9x

Combine like terms: 7x + -9x = -2x
84 + -2x = -36 + 9x + -9x

Combine like terms: 9x + -9x = 0
84 + -2x = -36 + 0
84 + -2x = -36

Add '-84' to each side of the equation.
84 + -84 + -2x = -36 + -84

Combine like terms: 84 + -84 = 0
0 + -2x = -36 + -84
-2x = -36 + -84

Combine like terms: -36 + -84 = -120
-2x = -120

Divide each side by '-2'.
x = 60

Simplifying
x = 60

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