105=X+2X

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Solution for 105=X+2X equation:


Simplifying
105 = X + 2X

Combine like terms: X + 2X = 3X
105 = 3X

Solving
105 = 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.
105 + -3X = 3X + -3X

Combine like terms: 3X + -3X = 0
105 + -3X = 0

Add '-105' to each side of the equation.
105 + -105 + -3X = 0 + -105

Combine like terms: 105 + -105 = 0
0 + -3X = 0 + -105
-3X = 0 + -105

Combine like terms: 0 + -105 = -105
-3X = -105

Divide each side by '-3'.
X = 35

Simplifying
X = 35

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