8x=4x+84

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Solution for 8x=4x+84 equation: 


Simplifying
8x = 4x + 84

Reorder the terms:
8x = 84 + 4x

Solving
8x = 84 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
8x + -4x = 84 + 4x + -4x

Combine like terms: 8x + -4x = 4x
4x = 84 + 4x + -4x

Combine like terms: 4x + -4x = 0
4x = 84 + 0
4x = 84

Divide each side by '4'.
x = 21

Simplifying
x = 21

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