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s/5+8.4=12.8
We simplify the equation to the form, which is simple to understand
s/5+8.4=12.8
Simplifying:
+ 0.2s+8.4=12.8
We move all terms containing s to the left and all other terms to the right.
+ 0.2s=+12.8-8.4
We simplify left and right side of the equation.
+ 0.2s=+4.4
We divide both sides of the equation by 0.2 to get s.
s=22
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