(y-7)(9y+11)=0

Simple and best practice solution for (y-7)(9y+11)=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 (y-7)(9y+11)=0 equation: 


Simplifying
(y + -7)(9y + 11) = 0

Reorder the terms:
(-7 + y)(9y + 11) = 0

Reorder the terms:
(-7 + y)(11 + 9y) = 0

Multiply (-7 + y) * (11 + 9y)
(-7(11 + 9y) + y(11 + 9y)) = 0
((11 * -7 + 9y * -7) + y(11 + 9y)) = 0
((-77 + -63y) + y(11 + 9y)) = 0
(-77 + -63y + (11 * y + 9y * y)) = 0
(-77 + -63y + (11y + 9y2)) = 0

Combine like terms: -63y + 11y = -52y
(-77 + -52y + 9y2) = 0

Solving
-77 + -52y + 9y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-11 + -9y)(7 + -1y) = 0


Subproblem 1
Set the factor '(-11 + -9y)' equal to zero and attempt to solve:

Simplifying
-11 + -9y = 0

Solving
-11 + -9y = 0

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

Add '11' to each side of the equation.
-11 + 11 + -9y = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -9y = 0 + 11
-9y = 0 + 11

Combine like terms: 0 + 11 = 11
-9y = 11

Divide each side by '-9'.
y = -1.222222222

Simplifying
y = -1.222222222

Subproblem 2
Set the factor '(7 + -1y)' equal to zero and attempt to solve:

Simplifying
7 + -1y = 0

Solving
7 + -1y = 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 + -1y = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 0 + -7
-1y = 0 + -7

Combine like terms: 0 + -7 = -7
-1y = -7

Divide each side by '-1'.
y = 7

Simplifying
y = 7
Solution
y = {-1.222222222, 7}

See similar equations:

| (x+3)(x-2)=24 | | -x(x+17)=0 | | 0.7(4x-8)=1.7-(x+2) | | 3(3x+4)=11x+8-2x+4 | | 0.15(10000)-0.07y=0.03(y+10000) | | 96=3a+4+4a | | 9/5*52/1 | | 5/2x+3/2x | | 9/5x52/1 | | 1/4x+2/3=12 | | x^3=21 | | 1.3+x-3.3=-4+5.5 | | X*3-680=2164 | | 22-1/5z=1/2z | | 4x+3=2+4 | | S+0.5=3.3 | | -3-9y=13 | | 2x-4/7=4 | | 21/6=7/y | | (M-13)/2=-8 | | 6+2(1+2)= | | (2+x)+6x-4= | | X-4=25(5) | | -7(-(y+6)+3y)=2(y+5) | | 32(x-3)/40(x-3) | | -12(4-y)+2y=1 | | sin(2x)+sin(4x)=0 | | 1/3x-8=21 | | 40-20=x-5 | | -6x+15=-63 | | 177+1222= | | 10x^5-15x^4-45x^3=0 |

Equations solver categories