3(b-3)=21

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Solution for 3(b-3)=21 equation:


3(b-3)=21

We simplify the equation to the form, which is simple to understand
3(b-3)=21

Reorder the terms in parentheses
+(+3b-9)=21

Remove unnecessary parentheses
+3b-9=+21

We move all terms containing b to the left and all other terms to the right.
+3b=+21+9

We simplify left and right side of the equation.
+3b=+30

We divide both sides of the equation by 3 to get b.
b=10

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