-4x+3(1.3x+7)=21

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Solution for -4x+3(1.3x+7)=21 equation:


-4x+3(1.3x+7)=21

We simplify the equation to the form, which is simple to understand 
-4x+3(1.3x+7)=21

Reorder the terms in parentheses
-4x+(+3.9x+21)=21

Remove unnecessary parentheses
-4x+3.9x+21=+21

We move all terms containing x to the left and all other terms to the right. 
-4x+3.9x=+21-21

We simplify left and right side of the equation. 
-0.1x=0

We divide both sides of the equation by -0.1 to get x. 
x=-0

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