21/y+14/y=-5

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Solution for 21/y+14/y=-5 equation: 



21/y+14/y=-5

We move all terms to the left:

21/y+14/y-(-5)=0



Domain of the equation: y!=0

y∈R



We add all the numbers together, and all the variables

21/y+14/y+5=0

We multiply all the terms by the denominator


5*y+21+14=0

We add all the numbers together, and all the variables

5y+35=0

We move all terms containing y to the left, all other terms to the right

5y=-35

y=-35/5

y=-7

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