y^2-4=7y-4

Simple and best practice solution for y^2-4=7y-4 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 y^2-4=7y-4 equation:


Simplifying
y2 + -4 = 7y + -4

Reorder the terms:
-4 + y2 = 7y + -4

Reorder the terms:
-4 + y2 = -4 + 7y

Add '4' to each side of the equation.
-4 + 4 + y2 = -4 + 4 + 7y

Combine like terms: -4 + 4 = 0
0 + y2 = -4 + 4 + 7y
y2 = -4 + 4 + 7y

Combine like terms: -4 + 4 = 0
y2 = 0 + 7y
y2 = 7y

Solving
y2 = 7y

Solving for variable 'y'.

Reorder the terms:
-7y + y2 = 7y + -7y

Combine like terms: 7y + -7y = 0
-7y + y2 = 0

Factor out the Greatest Common Factor (GCF), 'y'.
y(-7 + y) = 0

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(-7 + y)' equal to zero and attempt to solve: Simplifying -7 + y = 0 Solving -7 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + y = 0 + 7 Combine like terms: -7 + 7 = 0 0 + y = 0 + 7 y = 0 + 7 Combine like terms: 0 + 7 = 7 y = 7 Simplifying y = 7

Solution

y = {0, 7}

See similar equations:

| 3(-2x-8+7/6)-3=12 | | P=20-.2Q | | 5(3x+8)=24-2(x-8) | | 2(6x-5)=2-1(3x-2) | | 4y-1=20 | | 8x-(7x+6)=2x-31 | | p=a+b-8 | | 1-(4)/(x)=(21)/(x^2) | | n+(n+2)=70 | | 7=1/2x-5 | | y=x-35 | | -0.2w+0.15+9w=-17.7+7.1w | | 14.53-3.8h=-6.5h-19.22 | | -2p-6.9p-19.69=12.11-5.9p | | 18.3q=16.7q-20 | | 0=9x^2-20t+9 | | -16y-6.27=-8.1y-8.64 | | (u-1)(u+7)= | | 1+m=-20-6m | | 3x*3x+6x=0 | | -8+13k=12k | | 17+7d=17d-14-19 | | 5(2X+3)-(x-4)+1-2x=-50 | | -1+9v-4v=-10+4v | | -1-2g=2g+3 | | Inx=2.397 | | -2c=-4c+8 | | -10+7f=-10+6f+7f | | Cos60=x/9 | | 4x^2-9y+8x+12y-28=0 | | 10-7r=-6r+1 | | -48-(-30)=x/11 |

Equations solver categories