-4(x+7)=9-1/2x)

Solution for -4(x+7)=9-1/2x) equation:

-4(x+7)=9-1/2x)

We move all terms to the left:

-4(x+7)-(9-1/2x))=0


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

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

-4(x+7)-(-1/2x+9))=0

We multiply parentheses

-4x-(-1/2x+9))-28=0

We multiply all the terms by the denominator


-4x*2x+9))-28-(-1=0

We add all the numbers together, and all the variables

-4x*2x=0

Wy multiply elements

-8x^2=0

a = -8; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-8)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{-16}=0$