20s+40=90

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Solution for 20s+40=90 equation:


20s+40=90

We simplify the equation to the form, which is simple to understand 
20s+40=90

We move all terms containing s to the left and all other terms to the right. 
+20s=+90-40

We simplify left and right side of the equation. 
+20s=+50

We divide both sides of the equation by 20 to get s. 
s=2.5

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