3x+x=8-13

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Solution for 3x+x=8-13 equation: 


Simplifying
3x + x = 8 + -13

Combine like terms: 3x + x = 4x
4x = 8 + -13

Combine like terms: 8 + -13 = -5
4x = -5

Solving
4x = -5

Solving for variable 'x'.

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

Divide each side by '4'.
x = -1.25

Simplifying
x = -1.25

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