(8-y)(4y+7)=0

Simple and best practice solution for (8-y)(4y+7)=0 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 (8-y)(4y+7)=0 equation: 


Simplifying
(8 + -1y)(4y + 7) = 0

Reorder the terms:
(8 + -1y)(7 + 4y) = 0

Multiply (8 + -1y) * (7 + 4y)
(8(7 + 4y) + -1y * (7 + 4y)) = 0
((7 * 8 + 4y * 8) + -1y * (7 + 4y)) = 0
((56 + 32y) + -1y * (7 + 4y)) = 0
(56 + 32y + (7 * -1y + 4y * -1y)) = 0
(56 + 32y + (-7y + -4y2)) = 0

Combine like terms: 32y + -7y = 25y
(56 + 25y + -4y2) = 0

Solving
56 + 25y + -4y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(8 + -1y)(7 + 4y) = 0


Subproblem 1
Set the factor '(8 + -1y)' equal to zero and attempt to solve:

Simplifying
8 + -1y = 0

Solving
8 + -1y = 0

Move all terms containing y to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + -1y = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1y = 0 + -8
-1y = 0 + -8

Combine like terms: 0 + -8 = -8
-1y = -8

Divide each side by '-1'.
y = 8

Simplifying
y = 8

Subproblem 2
Set the factor '(7 + 4y)' equal to zero and attempt to solve:

Simplifying
7 + 4y = 0

Solving
7 + 4y = 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 + 4y = 0 + -7

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

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

Divide each side by '4'.
y = -1.75

Simplifying
y = -1.75
Solution
y = {8, -1.75}

See similar equations:

| 10x+4=6x-4(x+5) | | 5(2y-123)-6y=-20 | | x-4y+y^2=0 | | (x-3)/4=(1-x)/2 | | 9x^2y+2xy^2-5xy^2-5xy= | | (9x-7)(2x+9)=0 | | 4y=492 | | 8-(2x-4)=-2(x-1)+10 | | x-.40x=2.1 | | (-6)/(x+4)=3 | | 6(x+4)/5=2x-5 | | (4x-3)/(2)=9 | | 3x^2+36x+75=0 | | 8(a-5b-6c)= | | 4(-3-1)=180 | | (3+v)(3v-2)=0 | | 1/2(8)(12) | | 5+13s-2=9s+91-7s | | (4x-1)=(6x+5) | | (4x-z)=(6x+5) | | 142.50=0.45m+75 | | 13/5W+W=360 | | 9x+13y=8 | | -3/39 | | 39/-3 | | I=0.45(142.50)+75 | | y=-3/7x+1 | | 4y=540 | | 53+(-71)= | | 3(0.875+-0.625b)+5(0.875+-0.625b+b)=7 | | 3a+5(a+b)=7 | | y=(3/7x)+5 |

Equations solver categories