-3x-x=1+3

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


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

Combine like terms: -3x + -1x = -4x
-4x = 1 + 3

Combine like terms: 1 + 3 = 4
-4x = 4

Solving
-4x = 4

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

Simplifying
x = -1

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