9-x=(3+x)/2

Solution for 9-x=(3+x)/2 equation:

9-x=(3+x)/2

We move all terms to the left:

9-x-((3+x)/2)=0

We add all the numbers together, and all the variables

-x-((x+3)/2)+9=0

We add all the numbers together, and all the variables

-1x-((x+3)/2)+9=0

We multiply all the terms by the denominator


-1x*2)-((x+3)+9*2)=0

We add all the numbers together, and all the variables

-1x*2)-((x+3)=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:
$x=\frac{-b}{2a}=\frac{0}{-4}=0$