3+x-3x=-13

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Solution for 3+x-3x=-13 equation: 


Simplifying
3 + x + -3x = -13

Combine like terms: x + -3x = -2x
3 + -2x = -13

Solving
3 + -2x = -13

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -2x = -13 + -3

Combine like terms: 3 + -3 = 0
0 + -2x = -13 + -3
-2x = -13 + -3

Combine like terms: -13 + -3 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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