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0.3(b-21)=3.6
We simplify the equation to the form, which is simple to understand
0.3(b-21)=3.6
Reorder the terms in parentheses
+( + 0.3b-6.3)=3.6
Remove unnecessary parentheses
+ 0.3b-6.3=+3.6
We move all terms containing b to the left and all other terms to the right.
+ 0.3b=+3.6+6.3
We simplify left and right side of the equation.
+ 0.3b=+9.9
We divide both sides of the equation by 0.3 to get b.
b=33
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