3/4*y-1/2*y=-4

Solution for 3/4*y-1/2*y=-4 equation:

3/4*y-1/2*y=-4

We move all terms to the left:

3/4*y-1/2*y-(-4)=0


Domain of the equation: 4*y!=0

y!=0/1

y!=0

y∈R



Domain of the equation: 2*y!=0

y!=0/1

y!=0

y∈R


We add all the numbers together, and all the variables

3/4*y-1/2*y+4=0

We calculate fractions


(-4y^2)/16y^2+6y^2/16y^2+4=0

We multiply all the terms by the denominator


(-4y^2)+6y^2+4*16y^2=0

We add all the numbers together, and all the variables

6y^2+(-4y^2)+4*16y^2=0

Wy multiply elements

6y^2+(-4y^2)+64y^2=0

We get rid of parentheses

6y^2-4y^2+64y^2=0

We add all the numbers together, and all the variables

66y^2=0

a = 66; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·66·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$y=\frac{-b}{2a}=\frac{0}{132}=0$