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64*2s+13s=1040
We simplify the equation to the form, which is simple to understand
64*2s+13s=1040
We move all terms containing s to the left and all other terms to the right.
+128s+13s=+1040
We simplify left and right side of the equation.
+141s=+1040
We divide both sides of the equation by 141 to get s.
s=7.3758865248227
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