x(2)-4x=21

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Solution for x(2)-4x=21 equation:


x(2)-4x=21

We simplify the equation to the form, which is simple to understand 
x(2)-4x=21

Reorder the terms in parentheses
+(+2x)-4x=21

Remove unnecessary parentheses
+2x-4x=+21

We move all terms containing x to the left and all other terms to the right. 
+2x-4x=+21

We simplify left and right side of the equation. 
-2x=+21

We divide both sides of the equation by -2 to get x. 
x=-10.5

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