2z+7=21

Simple and best practice solution for 2z+7=21 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 2z+7=21 equation: 


Simplifying
2z + 7 = 21

Reorder the terms:
7 + 2z = 21

Solving
7 + 2z = 21

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + 2z = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 2z = 21 + -7
2z = 21 + -7

Combine like terms: 21 + -7 = 14
2z = 14

Divide each side by '2'.
z = 7

Simplifying
z = 7

See similar equations:

| 56x=90 | | 10K-400=300 | | 2z-2y= | | 5/2w=1= | | 2/3(c-18)=4 | | .5/15x100 | | 5m^2-3m= | | 3(x+5)=30-24 | | -3w^2+18w-21=0 | | r=vx+2h | | 5-15=10 | | Y=-x^5(Cos(8000000)) | | (15*c^-7*d^3/35*c^5*d^7)^-3 | | 7x^2+7=8-9x | | d^2-30d=23 | | 4a-8=12-2a | | T=6n+7 | | 3x*62345=5x | | x+0.2x=750 | | 53.4+53.6=53(4+6) | | x^3-6x^2+5x-9=0 | | -9x^2=72 | | -6(w+1)=3w-4+3(w+2) | | x^2+7x+99=76 | | 0=5(x+1) | | -7x^2=21x | | 5x+5y=O | | 5(3x-5)=5(x+2) | | 3x+4x-6=2+8-x | | 6x^4+15x^3y^2+3x^2y^3= | | -log(x)=1.7 | | 1.12+1.25g=8.6# |

Equations solver categories