91=(x-5)(1/7)

Solution for 91=(x-5)(1/7) equation:

91=(x-5)(1/7)

We move all terms to the left:

91-((x-5)(1/7))=0

We add all the numbers together, and all the variables

-((x-5)(+1/7))+91=0

We multiply parentheses ..

-((+x^2-5*1/7))+91=0

We multiply all the terms by the denominator


-((+x^2-5*1+91*7))=0


We calculate terms in parentheses: -((+x^2-5*1+91*7)), so:

(+x^2-5*1+91*7)

We get rid of parentheses

x^2-5*1+91*7

We add all the numbers together, and all the variables

x^2+632

Back to the equation:

-(x^2+632)


We get rid of parentheses

-x^2-632=0

We add all the numbers together, and all the variables

-1x^2-632=0

a = -1; b = 0; c = -632;
Δ = b2-4ac
Δ = 02-4·(-1)·(-632)
Δ = -2528
Delta is less than zero, so there is no solution for the equation