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12/4y-13=-1
We move all terms to the left:
12/4y-13-(-1)=0
Domain of the equation: 4y!=0We add all the numbers together, and all the variables
y!=0/4
y!=0
y∈R
12/4y-12=0
We multiply all the terms by the denominator
-12*4y+12=0
Wy multiply elements
-48y+12=0
We move all terms containing y to the left, all other terms to the right
-48y=-12
y=-12/-48
y=1/4
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