(x)=4x+21

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Solution for (x)=4x+21 equation: 


Simplifying
(x) = 4x + 21
x = 4x + 21

Reorder the terms:
x = 21 + 4x

Solving
x = 21 + 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.
x + -4x = 21 + 4x + -4x

Combine like terms: x + -4x = -3x
-3x = 21 + 4x + -4x

Combine like terms: 4x + -4x = 0
-3x = 21 + 0
-3x = 21

Divide each side by '-3'.
x = -7

Simplifying
x = -7

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