15-x=2+1+x+x

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Solution for 15-x=2+1+x+x equation:


Simplifying
15 + -1x = 2 + 1 + x + x

Combine like terms: 2 + 1 = 3
15 + -1x = 3 + x + x

Combine like terms: x + x = 2x
15 + -1x = 3 + 2x

Solving
15 + -1x = 3 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
15 + -1x + -2x = 3 + 2x + -2x

Combine like terms: -1x + -2x = -3x
15 + -3x = 3 + 2x + -2x

Combine like terms: 2x + -2x = 0
15 + -3x = 3 + 0
15 + -3x = 3

Add '-15' to each side of the equation.
15 + -15 + -3x = 3 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = 3 + -15
-3x = 3 + -15

Combine like terms: 3 + -15 = -12
-3x = -12

Divide each side by '-3'.
x = 4

Simplifying
x = 4

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