-21-7z=9z+23

Simple and best practice solution for -21-7z=9z+23 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 -21-7z=9z+23 equation:


Simplifying
-21 + -7z = 9z + 23

Reorder the terms:
-21 + -7z = 23 + 9z

Solving
-21 + -7z = 23 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
-21 + -7z + -9z = 23 + 9z + -9z

Combine like terms: -7z + -9z = -16z
-21 + -16z = 23 + 9z + -9z

Combine like terms: 9z + -9z = 0
-21 + -16z = 23 + 0
-21 + -16z = 23

Add '21' to each side of the equation.
-21 + 21 + -16z = 23 + 21

Combine like terms: -21 + 21 = 0
0 + -16z = 23 + 21
-16z = 23 + 21

Combine like terms: 23 + 21 = 44
-16z = 44

Divide each side by '-16'.
z = -2.75

Simplifying
z = -2.75

See similar equations:

| x=4(3.14)18(18) | | 8x+28=3x+12 | | (7x+3y)(7x-3y)= | | 6x=7y-4 | | 160=4(3.14)r(2) | | 8u-10u-10=-12 | | -7=4-x | | 14+x=50 | | 5r-4r=18 | | x=4(3.14)3.5(3.5) | | 3(5+y)= | | 5+3X-5= | | 19c-9c-5c-1=14 | | 3.2-8.4n=45.2+2.1n | | -13+x=-3 | | 6a+15a= | | -6=-5v+6v | | -3y-6=-11 | | 20n-17n+1=7 | | 19y-11y-8y+2y=10 | | -3y-7=21+y | | x=3.14(8)6+3.14(36) | | x^2+5x=7x+80 | | x=3.14(8)5+3.14(25) | | -11u--16u-6u=-20 | | x=3.14(9)6 | | x=3.14(1.5)6 | | 4.5-3.45x=8.04 | | 2x+5=y | | 7.65h+50=149.45 | | 8n-4n-n-3n+2n=16 | | x=3.14(5)8+3.14(25) |

Equations solver categories