(x+21)=(4x-36)

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Solution for (x+21)=(4x-36) equation:


(x+21)=(4x-36)

We simplify the equation to the form, which is simple to understand 
(x+21)=(4x-36)

Remove unnecessary parentheses
x+21=(4x-36)

Remove unnecessary parentheses
x+21=4x-36

We move all terms containing x to the left and all other terms to the right. 
+1x-4x=-36-21

We simplify left and right side of the equation. 
-3x=-57

We divide both sides of the equation by -3 to get x. 
x=19

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