15-3x-x=5

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


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

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

Solving
15 + -4x = 5

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + -4x = 5 + -15

Combine like terms: 15 + -15 = 0
0 + -4x = 5 + -15
-4x = 5 + -15

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

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

Simplifying
x = 2.5

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