3y^2=20-7y

Simple and best practice solution for 3y^2=20-7y 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 3y^2=20-7y equation:


Simplifying
3y2 = 20 + -7y

Solving
3y2 = 20 + -7y

Solving for variable 'y'.

Reorder the terms:
-20 + 7y + 3y2 = 20 + -7y + -20 + 7y

Reorder the terms:
-20 + 7y + 3y2 = 20 + -20 + -7y + 7y

Combine like terms: 20 + -20 = 0
-20 + 7y + 3y2 = 0 + -7y + 7y
-20 + 7y + 3y2 = -7y + 7y

Combine like terms: -7y + 7y = 0
-20 + 7y + 3y2 = 0

Factor a trinomial.
(-4 + -1y)(5 + -3y) = 0

Subproblem 1

Set the factor '(-4 + -1y)' equal to zero and attempt to solve: Simplifying -4 + -1y = 0 Solving -4 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1y = 0 + 4 -1y = 0 + 4 Combine like terms: 0 + 4 = 4 -1y = 4 Divide each side by '-1'. y = -4 Simplifying y = -4

Subproblem 2

Set the factor '(5 + -3y)' equal to zero and attempt to solve: Simplifying 5 + -3y = 0 Solving 5 + -3y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3y = 0 + -5 -3y = 0 + -5 Combine like terms: 0 + -5 = -5 -3y = -5 Divide each side by '-3'. y = 1.666666667 Simplifying y = 1.666666667

Solution

y = {-4, 1.666666667}

See similar equations:

| -5(2r+8)=3(11-4r)-58 | | 48X=120 | | 4a+7+a=3a-1 | | 55x-35x=500 | | y=(-0)-1.5 | | 4m+8=32 | | -3(2b+3)+(7b-8)=0 | | 2y^2+17y+34=y^2+16 | | y=(-2)-1.5 | | n/5+5=14 | | 8x-2x=42 | | (a+c)+5= | | y=(-3)-1.5 | | y=(-3)-15 | | -5=3n-13 | | 25+4n=-n | | 6x-4=4x-9 | | 12.6x-2.3x=-185.4 | | 5y+25-10=0 | | .75z-6=42 | | 32=54+7 | | 8n-(5n+8)=13 | | 5.2q-3.3-5.9q=1.7q-4.6 | | 15+y-y=2y+15 | | 7n+14=12 | | 5=n+16 | | 2x-3x/2+4-x/3=5 | | x+3x+5x=9x | | (2y+20)+(5y-30)= | | 7(16B+5)= | | 4a-4-5=3a+7 | | -4(2-3x)=7-2(1x-3) |

Equations solver categories