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8+b-20=5
We simplify the equation to the form, which is simple to understand
8+b-20=5
We move all terms containing b to the left and all other terms to the right.
+1b=+5-8+20
We simplify left and right side of the equation.
+1b=+17
We divide both sides of the equation by 1 to get b.
b=17
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