12b+3=9b-18

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Solution for 12b+3=9b-18 equation:


12b+3=9b-18

We simplify the equation to the form, which is simple to understand 
12b+3=9b-18

We move all terms containing b to the left and all other terms to the right. 
+12b-9b=-18-3

We simplify left and right side of the equation. 
+3b=-21

We divide both sides of the equation by 3 to get b. 
b=-7

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