7n-1=20

Simple and best practice solution for 7n-1=20 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 7n-1=20 equation: 


Simplifying
7n + -1 = 20

Reorder the terms:
-1 + 7n = 20

Solving
-1 + 7n = 20

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + 7n = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 7n = 20 + 1
7n = 20 + 1

Combine like terms: 20 + 1 = 21
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

See similar equations:

| 0.11x+0.8(x-3)=0.01(2x-1) | | 6p^2+42p=0 | | 5(2x+3)-4(6-3x)= | | 4x-2(x-4)=-6+4x+8 | | 0.002(2-k)+0.07(k-8)=1 | | 2(x-5)=4(x-2) | | -4x-2=-6x+11 | | 0.002(5-k)+0.03(k-9)=1 | | 44-(2c+3)=5c+20 | | 2(3x+1-2(x+4))-(3x+5)=0 | | 2+3=15 | | 3x+8=3(x+1)+4 | | 2(n+12)=(n+9)+6 | | 3x^2+48x-2160=0 | | 5/6/+2/3+1/3*2/3= | | -3p+4+4p=8 | | 3(v-2)-1=-5(-2v+3)-v | | 0.13x+0.8(x-4)=0.01(5x-5) | | 5y+2=4y-6 | | -168-8x=92+2x | | 15x+10=1.3x+18 | | 0.15x+0.2(x-4)=0.01(3x-2) | | 5-3y+3y=5 | | 2+3x=9x | | (2x)3=3x+9 | | -45+6x=70+11x | | 7(5-3y/7) | | x+5/2=10-x+2/3 | | 0.16x+0.6(x-3)=0.01(3x-4) | | -91-2x=77+5x | | 8+5*2+3*4=30 | | -4x+3=7-x |

Equations solver categories