20=5(-3)-2b

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Solution for 20=5(-3)-2b equation:


20=5(-3)-2b

We simplify the equation to the form, which is simple to understand 
20=5(-3)-2b

Reorder the terms in parentheses
20=+(-15)-2b

Remove unnecessary parentheses
+20=-15-2b

We move all terms containing b to the left and all other terms to the right. 
+2b=-15-20

We simplify left and right side of the equation. 
+2b=-35

We divide both sides of the equation by 02 to get b. 
b=-17.5

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