28=x+2x

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Solution for 28=x+2x equation:


Simplifying
28 = x + 2x

Combine like terms: x + 2x = 3x
28 = 3x

Solving
28 = 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
28 + -3x = 3x + -3x

Combine like terms: 3x + -3x = 0
28 + -3x = 0

Add '-28' to each side of the equation.
28 + -28 + -3x = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -3x = 0 + -28
-3x = 0 + -28

Combine like terms: 0 + -28 = -28
-3x = -28

Divide each side by '-3'.
x = 9.333333333

Simplifying
x = 9.333333333

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