z+21=15

Simple and best practice solution for z+21=15 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 z+21=15 equation: 


Simplifying
z + 21 = 15

Reorder the terms:
21 + z = 15

Solving
21 + z = 15

Solving for variable 'z'.

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

Add '-21' to each side of the equation.
21 + -21 + z = 15 + -21

Combine like terms: 21 + -21 = 0
0 + z = 15 + -21
z = 15 + -21

Combine like terms: 15 + -21 = -6
z = -6

Simplifying
z = -6

See similar equations:

| 70/42 | | 16(2x-8)=4(8x+1) | | -3x+14=14 | | 4a^2-40a+64=0 | | 8+9m-2=7m+14-2m | | 3x+4=6y-24 | | 10x^2-21=x | | 0.4(x+2.4)=-2.96 | | 10y-7y-10=50.45 | | 9=-3x+24 | | 5400-5.5v=1300 | | -1/8x=18 | | x^2+3x=-11 | | 4p+6p=20 | | 9=-3+24 | | y/3=-5 | | 3x+2-6=91.50 | | -11.9x=71.4 | | (x^2-49)(4x+2)=0 | | 3/2(3x-2)-10x-4=0 | | 2x^2+18.3x-226.1=0 | | 3t^2-5t-2=0 | | 40x^2-13x=0 | | 5.6q-4.9-5.4q=-0.8q-1.5 | | (3+2x+7x^2+2x^3)+(4-2x+7x^2-2x^3)= | | 8=5r+18 | | 2x+4=6y-24 | | 104=5+3(5x-7) | | 9x^5-4x^3+9x^2-4=0 | | 2x/5+5x=4/3 | | 8=5r | | x=6x+6 |

Equations solver categories