13+8(4x-9)=21

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Solution for 13+8(4x-9)=21 equation:


13+8(4x-9)=21

We simplify the equation to the form, which is simple to understand 
13+8(4x-9)=21

Reorder the terms in parentheses
13+(+32x-72)=21

Remove unnecessary parentheses
+13+32x-72=+21

We move all terms containing x to the left and all other terms to the right. 
+32x=+21-13+72

We simplify left and right side of the equation. 
+32x=+80

We divide both sides of the equation by 32 to get x. 
x=2.5

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