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b/2+7=-3
We simplify the equation to the form, which is simple to understand
b/2+7=-3
We move all terms containing b to the left and all other terms to the right.
+ 0.5b=-3-7
We simplify left and right side of the equation.
+ 0.5b=-10
We divide both sides of the equation by 0.5 to get b.
b=-20
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