42-6x=12(x-7/2)

Solution for 42-6x=12(x-7/2) equation:

42-6x=12(x-7/2)

We move all terms to the left:

42-6x-(12(x-7/2))=0

We add all the numbers together, and all the variables

-6x-(12(+x-7/2))+42=0

We multiply all the terms by the denominator


-6x*2))-(12(+x-7+42*2))=0

We add all the numbers together, and all the variables

-6x*2))-(12(x+77))=0

We add all the numbers together, and all the variables

-6x*2))-(12(x=0

Wy multiply elements

-12x^2=0

a = -12; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-12)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-24}=0$