12x+3-8x=7x+9+3

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Solution for 12x+3-8x=7x+9+3 equation:


Simplifying
12x + 3 + -8x = 7x + 9 + 3

Reorder the terms:
3 + 12x + -8x = 7x + 9 + 3

Combine like terms: 12x + -8x = 4x
3 + 4x = 7x + 9 + 3

Reorder the terms:
3 + 4x = 9 + 3 + 7x

Combine like terms: 9 + 3 = 12
3 + 4x = 12 + 7x

Solving
3 + 4x = 12 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
3 + 4x + -7x = 12 + 7x + -7x

Combine like terms: 4x + -7x = -3x
3 + -3x = 12 + 7x + -7x

Combine like terms: 7x + -7x = 0
3 + -3x = 12 + 0
3 + -3x = 12

Add '-3' to each side of the equation.
3 + -3 + -3x = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -3x = 12 + -3
-3x = 12 + -3

Combine like terms: 12 + -3 = 9
-3x = 9

Divide each side by '-3'.
x = -3

Simplifying
x = -3

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