x+2x+x+15=115

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Solution for x+2x+x+15=115 equation:


Simplifying
x + 2x + x + 15 = 115

Reorder the terms:
15 + x + 2x + x = 115

Combine like terms: x + 2x = 3x
15 + 3x + x = 115

Combine like terms: 3x + x = 4x
15 + 4x = 115

Solving
15 + 4x = 115

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 = 115 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 115 + -15
4x = 115 + -15

Combine like terms: 115 + -15 = 100
4x = 100

Divide each side by '4'.
x = 25

Simplifying
x = 25

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