4(21-4y)+5y=18

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Solution for 4(21-4y)+5y=18 equation:


4(21-4y)+5y=18

We simplify the equation to the form, which is simple to understand 
4(21-4y)+5y=18

Reorder the terms in parentheses
+(+84-16y)+5y=18

Remove unnecessary parentheses
+84-16y+5y=+18

We move all terms containing y to the left and all other terms to the right. 
-16y+5y=+18-84

We simplify left and right side of the equation. 
-11y=-66

We divide both sides of the equation by -11 to get y. 
y=6

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