-3x-x=15-5

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Solution for -3x-x=15-5 equation: 


Simplifying
-3x + -1x = 15 + -5

Combine like terms: -3x + -1x = -4x
-4x = 15 + -5

Combine like terms: 15 + -5 = 10
-4x = 10

Solving
-4x = 10

Solving for variable 'x'.

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

Divide each side by '-4'.
x = -2.5

Simplifying
x = -2.5

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