12x-7=8x+9

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Solution for 12x-7=8x+9 equation:


Simplifying
12x + -7 = 8x + 9

Reorder the terms:
-7 + 12x = 8x + 9

Reorder the terms:
-7 + 12x = 9 + 8x

Solving
-7 + 12x = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-7 + 12x + -8x = 9 + 8x + -8x

Combine like terms: 12x + -8x = 4x
-7 + 4x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-7 + 4x = 9 + 0
-7 + 4x = 9

Add '7' to each side of the equation.
-7 + 7 + 4x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 9 + 7
4x = 9 + 7

Combine like terms: 9 + 7 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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