139=x+2x+(x+15)

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Solution for 139=x+2x+(x+15) equation:


Simplifying
139 = x + 2x + (x + 15)

Reorder the terms:
139 = x + 2x + (15 + x)

Remove parenthesis around (15 + x)
139 = x + 2x + 15 + x

Reorder the terms:
139 = 15 + x + 2x + x

Combine like terms: x + 2x = 3x
139 = 15 + 3x + x

Combine like terms: 3x + x = 4x
139 = 15 + 4x

Solving
139 = 15 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
139 + -4x = 15 + 4x + -4x

Combine like terms: 4x + -4x = 0
139 + -4x = 15 + 0
139 + -4x = 15

Add '-139' to each side of the equation.
139 + -139 + -4x = 15 + -139

Combine like terms: 139 + -139 = 0
0 + -4x = 15 + -139
-4x = 15 + -139

Combine like terms: 15 + -139 = -124
-4x = -124

Divide each side by '-4'.
x = 31

Simplifying
x = 31

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