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500=1/2*20(22+b)
We simplify the equation to the form, which is simple to understand
500=1/2*20(22+b)
Reorder the terms in parentheses
500=+( + 0.55 + 0.025b)
Remove unnecessary parentheses
+500=0.55 + 0.025b
We move all terms containing b to the left and all other terms to the right.
-0.025b=0.55-500
We simplify left and right side of the equation.
-0.025b=-499.45
We divide both sides of the equation by -00.025 to get b.
b=19978
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