x+2x-21=162

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Solution for x+2x-21=162 equation:


Simplifying
x + 2x + -21 = 162

Reorder the terms:
-21 + x + 2x = 162

Combine like terms: x + 2x = 3x
-21 + 3x = 162

Solving
-21 + 3x = 162

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 3x = 162 + 21

Combine like terms: -21 + 21 = 0
0 + 3x = 162 + 21
3x = 162 + 21

Combine like terms: 162 + 21 = 183
3x = 183

Divide each side by '3'.
x = 61

Simplifying
x = 61

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