7y+y^2=18

Simple and best practice solution for 7y+y^2=18 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 7y+y^2=18 equation:


Simplifying
7y + y2 = 18

Solving
7y + y2 = 18

Solving for variable 'y'.

Reorder the terms:
-18 + 7y + y2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 7y + y2 = 0

Factor a trinomial.
(-9 + -1y)(2 + -1y) = 0

Subproblem 1

Set the factor '(-9 + -1y)' equal to zero and attempt to solve: Simplifying -9 + -1y = 0 Solving -9 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1y = 0 + 9 -1y = 0 + 9 Combine like terms: 0 + 9 = 9 -1y = 9 Divide each side by '-1'. y = -9 Simplifying y = -9

Subproblem 2

Set the factor '(2 + -1y)' equal to zero and attempt to solve: Simplifying 2 + -1y = 0 Solving 2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1y = 0 + -2 -1y = 0 + -2 Combine like terms: 0 + -2 = -2 -1y = -2 Divide each side by '-1'. y = 2 Simplifying y = 2

Solution

y = {-9, 2}

See similar equations:

| 6x=10x+24 | | p^2-81=0 | | X^2+20x=49 | | -1(x-8)+2(x+2)=4x | | 8y+3(y-7)=4(y+2)-2 | | 4x+0.2/0.5=6 | | 4c+c=7c | | 5x-2=3x^2 | | 8v-11=v^2-2v-4v+8 | | 4u^2+21u+5= | | -11m-2m= | | -4(t-6)-(t+13)=3 | | 5x+7x=84 | | 4x-6=6x | | 7x=12x+20 | | cx=dy | | 16x^2+8r-35= | | [9(x+5)-16]+[2(x-3)+2]= | | 81s^2-90s+25= | | 2x^2-9x-41=0 | | 3(3x+5)-5(x+7)=60 | | 10x-5-7x=4 | | X^4+10x=35 | | -6y+7=7y+1 | | 25r^2-16=0 | | y=-x^2-13x-40 | | s^2+3s+2=0 | | X^2+20x=57 | | 4r^2+21r+5= | | X^2+20x=50 | | -5(-8a-4b+6)= | | s-42=31 |

Equations solver categories