10=-2(-9+b)

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Solution for 10=-2(-9+b) equation:


10=-2(-9+b)

We simplify the equation to the form, which is simple to understand 
10=-2(-9+b)

Reorder the terms in parentheses
10=+(+18-2b)

Remove unnecessary parentheses
+10=+18-2b

We move all terms containing b to the left and all other terms to the right. 
+2b=+18-10

We simplify left and right side of the equation. 
+2b=+8

We divide both sides of the equation by 02 to get b. 
b=4

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