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b=8-2b
We simplify the equation to the form, which is simple to understand
b=8-2b
We move all terms containing b to the left and all other terms to the right.
+1b+2b=+8
We simplify left and right side of the equation.
+3b=+8
We divide both sides of the equation by 3 to get b.
b=2.66666666667
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