87+x=29-3x

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Solution for 87+x=29-3x equation: 


Simplifying
87 + x = 29 + -3x

Solving
87 + x = 29 + -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 + x + 3x = 29 + -3x + 3x

Combine like terms: x + 3x = 4x
87 + 4x = 29 + -3x + 3x

Combine like terms: -3x + 3x = 0
87 + 4x = 29 + 0
87 + 4x = 29

Add '-87' to each side of the equation.
87 + -87 + 4x = 29 + -87

Combine like terms: 87 + -87 = 0
0 + 4x = 29 + -87
4x = 29 + -87

Combine like terms: 29 + -87 = -58
4x = -58

Divide each side by '4'.
x = -14.5

Simplifying
x = -14.5

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