78.74+15.87y(0.011201-y)=100-7.14y(1+y)

Solution for 78.74+15.87y(0.011201-y)=100-7.14y(1+y) equation:

78.74+15.87y(0.011201-y)=100-7.14y(1+y)

We move all terms to the left:

78.74+15.87y(0.011201-y)-(100-7.14y(1+y))=0

We add all the numbers together, and all the variables

15.87y(-1y+0.011201)-(100-7.14y(y+1))+78.74=0

We multiply parentheses

-15y^2+0.168015y-(100-7.14y(y+1))+78.74=0


We calculate terms in parentheses: -(100-7.14y(y+1)), so:

100-7.14y(y+1)

determiningTheFunctionDomain
-7.14y(y+1)+100

We multiply parentheses

-7y^2-7y+100

Back to the equation:

-(-7y^2-7y+100)


We get rid of parentheses

-15y^2+7y^2+7y+0.168015y-100+78.74=0

We add all the numbers together, and all the variables

-8y^2+7.168015y-21.26=0

a = -8; b = 7.168015; c = -21.26;
Δ = b2-4ac
Δ = 7.1680152-4·(-8)·(-21.26)
Δ = -628.93956095978
Delta is less than zero, so there is no solution for the equation