x+2x+15=90

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Solution for x+2x+15=90 equation:


Simplifying
x + 2x + 15 = 90

Reorder the terms:
15 + x + 2x = 90

Combine like terms: x + 2x = 3x
15 + 3x = 90

Solving
15 + 3x = 90

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 + 3x = 90 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 90 + -15
3x = 90 + -15

Combine like terms: 90 + -15 = 75
3x = 75

Divide each side by '3'.
x = 25

Simplifying
x = 25

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