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-28=4/5(9-2b)
We simplify the equation to the form, which is simple to understand
-28=4/5(9-2b)
Reorder the terms in parentheses
-28=+(+7.2-1.6b)
Remove unnecessary parentheses
-28=+7.2-1.6b
We move all terms containing b to the left and all other terms to the right.
+1.6b=+7.2+28
We simplify left and right side of the equation.
+1.6b=+35.2
We divide both sides of the equation by 01.6 to get b.
b=22
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