90-x=(1/2)x

Solution for 90-x=(1/2)x equation:

90-x=(1/2)x

We move all terms to the left:

90-x-((1/2)x)=0


Domain of the equation: 2)x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We multiply all the terms by the denominator


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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

Wy multiply elements

-2x^2=0

a = -2; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-2)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-4}=0$