(7-z)(3z+1)=0

Simple and best practice solution for (7-z)(3z+1)=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 (7-z)(3z+1)=0 equation:


Simplifying
(7 + -1z)(3z + 1) = 0

Reorder the terms:
(7 + -1z)(1 + 3z) = 0

Multiply (7 + -1z) * (1 + 3z)
(7(1 + 3z) + -1z * (1 + 3z)) = 0
((1 * 7 + 3z * 7) + -1z * (1 + 3z)) = 0
((7 + 21z) + -1z * (1 + 3z)) = 0
(7 + 21z + (1 * -1z + 3z * -1z)) = 0
(7 + 21z + (-1z + -3z2)) = 0

Combine like terms: 21z + -1z = 20z
(7 + 20z + -3z2) = 0

Solving
7 + 20z + -3z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(7 + -1z)(1 + 3z) = 0

Subproblem 1

Set the factor '(7 + -1z)' equal to zero and attempt to solve: Simplifying 7 + -1z = 0 Solving 7 + -1z = 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 + -1z = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1z = 0 + -7 -1z = 0 + -7 Combine like terms: 0 + -7 = -7 -1z = -7 Divide each side by '-1'. z = 7 Simplifying z = 7

Subproblem 2

Set the factor '(1 + 3z)' equal to zero and attempt to solve: Simplifying 1 + 3z = 0 Solving 1 + 3z = 0 Move all terms containing z to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3z = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3z = 0 + -1 3z = 0 + -1 Combine like terms: 0 + -1 = -1 3z = -1 Divide each side by '3'. z = -0.3333333333 Simplifying z = -0.3333333333

Solution

z = {7, -0.3333333333}

See similar equations:

| 5x+3=223 | | 5x^2-19x-20=0 | | 6.6x-1.7=18.1 | | 6=(s-3/4)-20 | | 0.043=w(1+-0.59w) | | 0.04=w(1-0.59w) | | qd=y-3p | | 4m^2+16m-180=0 | | y+(-18)=-3y+2 | | 4+2x=6+3x | | 3(sec^2)x+(-6)=0 | | 3sec^2x-6=0 | | 17765/646 | | 3(x-2)-12= | | (6-6i)(5+i)=0 | | (18x-12y+30z)= | | r*r=3(4+r) | | -8+5=-13y | | 16+13r+11k-5r-3k+27= | | 4x^2+4y^2+8y=16 | | 2y-1-1=1y-3-(-5+y) | | 3500/30=10x | | .03x^2-33x+15000=13000 | | 4(3-x)=-4x+12 | | n^2+26n+169=0 | | log(4)(5x-9)=2 | | -4(x-2)=x-2 | | 3x-6=3x+5 | | 4(-4e-5)= | | 8x-1=-1+8x | | 6(x+1)+5= | | 3/14x7/10= |

Equations solver categories