x+3-3x-12=1

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Solution for x+3-3x-12=1 equation:


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

Reorder the terms:
3 + -12 + x + -3x = 1

Combine like terms: 3 + -12 = -9
-9 + x + -3x = 1

Combine like terms: x + -3x = -2x
-9 + -2x = 1

Solving
-9 + -2x = 1

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -2x = 1 + 9

Combine like terms: -9 + 9 = 0
0 + -2x = 1 + 9
-2x = 1 + 9

Combine like terms: 1 + 9 = 10
-2x = 10

Divide each side by '-2'.
x = -5

Simplifying
x = -5

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