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(b-7)-(b+9)=5b
We simplify the equation to the form, which is simple to understand
(b-7)-(b+9)=5b
Remove unnecessary parentheses
b-7-(b+9)=5b
Remove unnecessary parentheses
b-7-1b-9=5b
We move all terms containing b to the left and all other terms to the right.
+1b-1b-5b=+7+9
We simplify left and right side of the equation.
-5b=+16
We divide both sides of the equation by -5 to get b.
b=-3.2
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