21=-6y+3(y+8)

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Solution for 21=-6y+3(y+8) equation:


21=-6y+3(y+8)

We simplify the equation to the form, which is simple to understand 
21=-6y+3(y+8)

Reorder the terms in parentheses
21=-6y+(+3y+24)

Remove unnecessary parentheses
+21=-6y+3y+24

We move all terms containing y to the left and all other terms to the right. 
+6y-3y=+24-21

We simplify left and right side of the equation. 
+3y=+3

We divide both sides of the equation by 3 to get y. 
y=1

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