7/y+2/y=-45

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Solution for 7/y+2/y=-45 equation:



7/y+2/y=-45
We move all terms to the left:
7/y+2/y-(-45)=0
Domain of the equation: y!=0
y∈R
We add all the numbers together, and all the variables
7/y+2/y+45=0
We multiply all the terms by the denominator
45*y+7+2=0
We add all the numbers together, and all the variables
45y+9=0
We move all terms containing y to the left, all other terms to the right
45y=-9
y=-9/45
y=-1/5

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