7x-28=9x+12

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Solution for 7x-28=9x+12 equation:


Simplifying
7x + -28 = 9x + 12

Reorder the terms:
-28 + 7x = 9x + 12

Reorder the terms:
-28 + 7x = 12 + 9x

Solving
-28 + 7x = 12 + 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.
-28 + 7x + -9x = 12 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-28 + -2x = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
-28 + -2x = 12 + 0
-28 + -2x = 12

Add '28' to each side of the equation.
-28 + 28 + -2x = 12 + 28

Combine like terms: -28 + 28 = 0
0 + -2x = 12 + 28
-2x = 12 + 28

Combine like terms: 12 + 28 = 40
-2x = 40

Divide each side by '-2'.
x = -20

Simplifying
x = -20

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