3x+40=x+12

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Solution for 3x+40=x+12 equation:


Simplifying
3x + 40 = x + 12

Reorder the terms:
40 + 3x = x + 12

Reorder the terms:
40 + 3x = 12 + x

Solving
40 + 3x = 12 + 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.
40 + 3x + -1x = 12 + x + -1x

Combine like terms: 3x + -1x = 2x
40 + 2x = 12 + x + -1x

Combine like terms: x + -1x = 0
40 + 2x = 12 + 0
40 + 2x = 12

Add '-40' to each side of the equation.
40 + -40 + 2x = 12 + -40

Combine like terms: 40 + -40 = 0
0 + 2x = 12 + -40
2x = 12 + -40

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

Divide each side by '2'.
x = -14

Simplifying
x = -14

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