3=1+-2b

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Solution for 3=1+-2b equation:



3=1+-2b
We move all terms to the left:
3-(1+-2b)=0
We add all the numbers together, and all the variables
-(-2b)+3=0
We get rid of parentheses
2b+3=0
We move all terms containing b to the left, all other terms to the right
2b=-3
b=-3/2
b=-1+1/2

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