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b-3/4=-12
We move all terms to the left:
b-3/4-(-12)=0
We add all the numbers together, and all the variables
b+12-3/4=0
We multiply all the terms by the denominator
b*4-3+12*4=0
We add all the numbers together, and all the variables
b*4+45=0
Wy multiply elements
4b+45=0
We move all terms containing b to the left, all other terms to the right
4b=-45
b=-45/4
b=-11+1/4
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