(7/9)y=-21

Simple and best practice solution for (7/9)y=-21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (7/9)y=-21 equation: 



(7/9)y=-21

We move all terms to the left:

(7/9)y-(-21)=0



Domain of the equation: 9)y!=0

y!=0/1

y!=0

y∈R



We add all the numbers together, and all the variables

(+7/9)y-(-21)=0

We add all the numbers together, and all the variables

(+7/9)y+21=0

We multiply parentheses

7y^2+21=0

a = 7; b = 0; c = +21;
Δ = b2-4ac
Δ = 02-4·7·21
Δ = -588
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 80=5j+3j | | -(6u/5)=30 | | 2y+2=5y+10 | | 2+3-2x=7 | | 7x=3x+2- | | 3^(5x-1)=30 | | -2b+122=1b+133 | | -10a+154=-5a+109 | | -2b+72=5b+2 | | 25+x=6.25 | | 2w-94=2w-54=180 | | -3a+137=2a+122 | | 182=3x+11/5x | | -12b+176=120-5b | | -s-9=s+9 | | -12a+160=-2a+110 | | 2/5x+12=18 | | -3b+51=-1b+41 | | 4x=5x-4+6x-2/2 | | 12n-3n=0 | | -7a+193=-5a+179 | | 12x-12=10x+9 | | 4q-6=3q | | 37=12+2.50r | | -30/5=x | | 12x-12=10x9 | | x/2+13=19 | | 9y+19=5y+14 | | -5z=-6z-6 | | 4x+3=1x+-6 | | -2z=3=-7z-12 | | 2(y+6)-8=32 |

Equations solver categories