87=2x+x

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Solution for 87=2x+x equation:


Simplifying
87 = 2x + x

Combine like terms: 2x + x = 3x
87 = 3x

Solving
87 = 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.
87 + -3x = 3x + -3x

Combine like terms: 3x + -3x = 0
87 + -3x = 0

Add '-87' to each side of the equation.
87 + -87 + -3x = 0 + -87

Combine like terms: 87 + -87 = 0
0 + -3x = 0 + -87
-3x = 0 + -87

Combine like terms: 0 + -87 = -87
-3x = -87

Divide each side by '-3'.
x = 29

Simplifying
x = 29

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