Solve for y
y = -\frac{26}{17} = -1\frac{9}{17} \approx -1.529411765
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Linear Equation
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\frac{ 1 }{ y+1 } + \frac{ 1 }{ y+2 } = \frac{ 2 }{ y+10 }
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\left(y+2\right)\left(y+10\right)+\left(y+1\right)\left(y+10\right)=\left(y+1\right)\left(y+2\right)\times 2
Variable y cannot be equal to any of the values -10,-2,-1 since division by zero is not defined. Multiply both sides of the equation by \left(y+1\right)\left(y+2\right)\left(y+10\right), the least common multiple of y+1,y+2,y+10.
y^{2}+12y+20+\left(y+1\right)\left(y+10\right)=\left(y+1\right)\left(y+2\right)\times 2
Use the distributive property to multiply y+2 by y+10 and combine like terms.
y^{2}+12y+20+y^{2}+11y+10=\left(y+1\right)\left(y+2\right)\times 2
Use the distributive property to multiply y+1 by y+10 and combine like terms.
2y^{2}+12y+20+11y+10=\left(y+1\right)\left(y+2\right)\times 2
Combine y^{2} and y^{2} to get 2y^{2}.
2y^{2}+23y+20+10=\left(y+1\right)\left(y+2\right)\times 2
Combine 12y and 11y to get 23y.
2y^{2}+23y+30=\left(y+1\right)\left(y+2\right)\times 2
Add 20 and 10 to get 30.
2y^{2}+23y+30=\left(y^{2}+3y+2\right)\times 2
Use the distributive property to multiply y+1 by y+2 and combine like terms.
2y^{2}+23y+30=2y^{2}+6y+4
Use the distributive property to multiply y^{2}+3y+2 by 2.
2y^{2}+23y+30-2y^{2}=6y+4
Subtract 2y^{2} from both sides.
23y+30=6y+4
Combine 2y^{2} and -2y^{2} to get 0.
23y+30-6y=4
Subtract 6y from both sides.
17y+30=4
Combine 23y and -6y to get 17y.
17y=4-30
Subtract 30 from both sides.
17y=-26
Subtract 30 from 4 to get -26.
y=\frac{-26}{17}
Divide both sides by 17.
y=-\frac{26}{17}
Fraction \frac{-26}{17} can be rewritten as -\frac{26}{17} by extracting the negative sign.
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Limits
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