3(x-7)=5x(x-1)-4

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Solution for 3(x-7)=5x(x-1)-4 equation: 



3(x-7)=5x(x-1)-4

We move all terms to the left:

3(x-7)-(5x(x-1)-4)=0

We multiply parentheses

3x-(5x(x-1)-4)-21=0



We calculate terms in parentheses: -(5x(x-1)-4), so:

5x(x-1)-4

We multiply parentheses

5x^2-5x-4

Back to the equation:

-(5x^2-5x-4)



We get rid of parentheses

-5x^2+3x+5x+4-21=0

We add all the numbers together, and all the variables

-5x^2+8x-17=0

a = -5; b = 8; c = -17;
Δ = b2-4ac
Δ = 82-4·(-5)·(-17)
Δ = -276
Delta is less than zero, so there is no solution for the equation

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