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y-9/12=-8.4
We move all terms to the left:
y-9/12-(-8.4)=0
We add all the numbers together, and all the variables
y+8.4-9/12=0
We multiply all the terms by the denominator
y*12-9+(8.4)*12=0
We add all the numbers together, and all the variables
y*12+91.8=0
Wy multiply elements
12y+91.8=0
We move all terms containing y to the left, all other terms to the right
12y=-91.8
y=-91.8/12
y=-7+4.33333333333/6.66666666667
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