x+(3x)=84

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Solution for x+(3x)=84 equation: 


Simplifying
x + (3x) = 84

Combine like terms: x + (3x) = 4x
4x = 84

Solving
4x = 84

Solving for variable 'x'.

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

Divide each side by '4'.
x = 21

Simplifying
x = 21

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