(9-y)(4y-7)=0

Simple and best practice solution for (9-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 (9-y)(4y-7)=0 equation: 


Simplifying
(9 + -1y)(4y + -7) = 0

Reorder the terms:
(9 + -1y)(-7 + 4y) = 0

Multiply (9 + -1y) * (-7 + 4y)
(9(-7 + 4y) + -1y * (-7 + 4y)) = 0
((-7 * 9 + 4y * 9) + -1y * (-7 + 4y)) = 0
((-63 + 36y) + -1y * (-7 + 4y)) = 0
(-63 + 36y + (-7 * -1y + 4y * -1y)) = 0
(-63 + 36y + (7y + -4y2)) = 0

Combine like terms: 36y + 7y = 43y
(-63 + 43y + -4y2) = 0

Solving
-63 + 43y + -4y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-9 + y)(7 + -4y) = 0


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

Simplifying
-9 + y = 0

Solving
-9 + y = 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 + y = 0 + 9

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

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

Simplifying
y = 9

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 = {9, 1.75}

See similar equations:

| (2x-3)(4y+6)= | | In(x^2)+In(x)=8 | | 55/x=7-1/x | | 11x+2=30x+50 | | 5x(6+3x)=17-2x | | 40y+4=8 | | 2k^2+2k+1=0 | | 1/14x=448 | | 4k^2+4k+2=0 | | x+2x=x+18 | | -5w+7=11 | | -5+7=11 | | x+2+2x=6x-30 | | -5-7=11 | | 25y+9=5 | | m-n+y=6 | | m-n+y= | | Y=-2(x+8)(x+1) | | 12x^2+100=0 | | 12.50*12= | | 100-x=90+x | | log(4x-8)=7 | | 625+2(-9.8)(100-x)=v^2 | | 9x-7=10x-14 | | f(-10)=5(-10)+8 | | x-1=-20.25 | | f(5)=5(5)+8 | | (y+5)=48 | | P=5/6x | | 3(2y+1)-4(3y-2)=-7 | | 8x+3=-5x+12 | | 2y+5=3y-9 |

Equations solver categories