9b+20=10b-9

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Solution for 9b+20=10b-9 equation:



9b+20=10b-9
We move all terms to the left:
9b+20-(10b-9)=0
We get rid of parentheses
9b-10b+9+20=0
We add all the numbers together, and all the variables
-1b+29=0
We move all terms containing b to the left, all other terms to the right
-b=-29
b=-29/-1
b=+29

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