3x+12x=12-x

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


Simplifying
3x + 12x = 12 + -1x

Combine like terms: 3x + 12x = 15x
15x = 12 + -1x

Solving
15x = 12 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
15x + x = 12 + -1x + x

Combine like terms: 15x + x = 16x
16x = 12 + -1x + x

Combine like terms: -1x + x = 0
16x = 12 + 0
16x = 12

Divide each side by '16'.
x = 0.75

Simplifying
x = 0.75

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