12+3x-9x=15-7+x

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Solution for 12+3x-9x=15-7+x equation:


Simplifying
12 + 3x + -9x = 15 + -7 + x

Combine like terms: 3x + -9x = -6x
12 + -6x = 15 + -7 + x

Combine like terms: 15 + -7 = 8
12 + -6x = 8 + x

Solving
12 + -6x = 8 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
12 + -6x + -1x = 8 + x + -1x

Combine like terms: -6x + -1x = -7x
12 + -7x = 8 + x + -1x

Combine like terms: x + -1x = 0
12 + -7x = 8 + 0
12 + -7x = 8

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

Combine like terms: 12 + -12 = 0
0 + -7x = 8 + -12
-7x = 8 + -12

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

Divide each side by '-7'.
x = 0.5714285714

Simplifying
x = 0.5714285714

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