7x(x-1)-2(x-5)=x-5

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Solution for 7x(x-1)-2(x-5)=x-5 equation: 



7x(x-1)-2(x-5)=x-5

We move all terms to the left:

7x(x-1)-2(x-5)-(x-5)=0

We multiply parentheses

7x^2-7x-2x-(x-5)+10=0

We get rid of parentheses

7x^2-7x-2x-x+5+10=0

We add all the numbers together, and all the variables

7x^2-10x+15=0

a = 7; b = -10; c = +15;
Δ = b2-4ac
Δ = -102-4·7·15
Δ = -320
Delta is less than zero, so there is no solution for the equation

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