21x-9=5(4x+5)-16

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Solution for 21x-9=5(4x+5)-16 equation:


21x-9=5(4x+5)-16

We simplify the equation to the form, which is simple to understand 
21x-9=5(4x+5)-16

Reorder the terms in parentheses
21x-9=+(+20x+25)-16

Remove unnecessary parentheses
+21x-9=+20x+25-16

We move all terms containing x to the left and all other terms to the right. 
+21x-20x=+25-16+9

We simplify left and right side of the equation. 
+1x=+18

We divide both sides of the equation by 1 to get x. 
x=18

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