7z^2+8=5

Simple and best practice solution for 7z^2+8=5 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 7z^2+8=5 equation:


Simplifying
7z2 + 8 = 5

Reorder the terms:
8 + 7z2 = 5

Solving
8 + 7z2 = 5

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + 7z2 = 5 + -8

Combine like terms: 8 + -8 = 0
0 + 7z2 = 5 + -8
7z2 = 5 + -8

Combine like terms: 5 + -8 = -3
7z2 = -3

Divide each side by '7'.
z2 = -0.4285714286

Simplifying
z2 = -0.4285714286

Reorder the terms:
0.4285714286 + z2 = -0.4285714286 + 0.4285714286

Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000
0.4285714286 + z2 = 0.0000000000

The solution to this equation could not be determined.

See similar equations:

| 4cos(x)+3sin(x)= | | 4(3x-9)=72 | | 17=7+.625 | | 5x+3=8x-10 | | -9+x=.5 | | 4x^2+9y^2-40x-36y=100 | | 8a+5+a+12= | | N=3x+15 | | 12-5(6v-1)=-63 | | x^2-y^2=1200 | | 6-7/9f=-1 | | y+y+2y=24 | | 3y^2-28y-80=0 | | 17y-9(12+2y)=3(y+22)+45-y | | x^2-kx-4=0 | | 7x+9y=2918 | | 2e-(4f+4f)= | | -8x(-3x+6)=4-x | | -7=-6v+5v | | -5T^2+16T+30=0 | | 7.5/1.25 | | -19=1-3k-5 | | 49x^2+112x=-60 | | 3x+35x=0 | | x*2.71=x+2 | | x*1.71=x+2 | | 5mn-4nm+3mn-3= | | -8u-(-10)=34 | | 12x^2-112+180=0 | | 6x-17=-3x+4 | | 6x-17=-3+4 | | 2a+2b+2x+2y=113 |

Equations solver categories