b+(-3)=9

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Solution for b+(-3)=9 equation:


b+(-3)=9

We simplify the equation to the form, which is simple to understand 
b+(-3)=9

Remove unnecessary parentheses
+b-3=+9

We move all terms containing b to the left and all other terms to the right. 
+1b=+9+3

We simplify left and right side of the equation. 
+1b=+12

We divide both sides of the equation by 1 to get b. 
b=12

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