(5-z)(4z-7)=0

Simple and best practice solution for (5-z)(4z-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 (5-z)(4z-7)=0 equation:


Simplifying
(5 + -1z)(4z + -7) = 0

Reorder the terms:
(5 + -1z)(-7 + 4z) = 0

Multiply (5 + -1z) * (-7 + 4z)
(5(-7 + 4z) + -1z * (-7 + 4z)) = 0
((-7 * 5 + 4z * 5) + -1z * (-7 + 4z)) = 0
((-35 + 20z) + -1z * (-7 + 4z)) = 0
(-35 + 20z + (-7 * -1z + 4z * -1z)) = 0
(-35 + 20z + (7z + -4z2)) = 0

Combine like terms: 20z + 7z = 27z
(-35 + 27z + -4z2) = 0

Solving
-35 + 27z + -4z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-5 + z)(7 + -4z) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -4z)' equal to zero and attempt to solve: Simplifying 7 + -4z = 0 Solving 7 + -4z = 0 Move all terms containing z to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -4z = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4z = 0 + -7 -4z = 0 + -7 Combine like terms: 0 + -7 = -7 -4z = -7 Divide each side by '-4'. z = 1.75 Simplifying z = 1.75

Solution

z = {5, 1.75}

See similar equations:

| 4.9t^2-2.5t-9=0 | | 9/4-(-9/10)= | | X/8-1/2=10 | | 10.7-2.4(11.3)= | | 3x^3-x^2-22x+24=0 | | A+b+y+s+e=8b | | 60+30x=450+30x | | -4.1(22.5)= | | n-20=20 | | 3m-3n=4 | | 0.009(9-k)+0.06(k-2)=1 | | 5a(-3a)= | | 11x+1,100=10,000 | | y=-2x^2-7x-60 | | y=-2t^2-7t-60 | | 3(4y-8)=13 | | -3-36= | | X^2+y^2+6x+18y-20=0 | | V^2-6v-5/3v^2-12v-9 | | 2x(x+2)=45 | | 3(y+7)-7y=-19 | | (3x+10)+(7x-3)=180 | | 7.5+-1y+3y=22.5 | | 42xj+18-19j=28 | | -x+4(1)=8 | | 3*x+3*y=22.20 | | 4x^2=-2x+40 | | 9m^2-30m+25=30 | | 6x+4=51 | | f(x)=x^4-24x^2+13 | | (3+I)(7-6i)= | | 14x^10+20x^7=0 |

Equations solver categories