90-2x=(180-x)/5

Solution for 90-2x=(180-x)/5 equation:

90-2x=(180-x)/5

We move all terms to the left:

90-2x-((180-x)/5)=0

We add all the numbers together, and all the variables

-2x-((-1x+180)/5)+90=0

We multiply all the terms by the denominator


-2x*5)-((-1x+180)+90*5)=0

We add all the numbers together, and all the variables

-2x*5)-((-1x+180)=0

Wy multiply elements

-10x^2=0

a = -10; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-10)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-20}=0$