7n-21=7

Simple and best practice solution for 7n-21=7 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-21=7 equation: 


Simplifying
7n + -21 = 7

Reorder the terms:
-21 + 7n = 7

Solving
-21 + 7n = 7

Solving for variable 'n'.

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

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

Combine like terms: -21 + 21 = 0
0 + 7n = 7 + 21
7n = 7 + 21

Combine like terms: 7 + 21 = 28
7n = 28

Divide each side by '7'.
n = 4

Simplifying
n = 4

See similar equations:

| .07+y=-1.34 | | 16x^2-64x+56=0 | | 3x+37=12x-71 | | -6+(-3)+(-7)= | | 5(3n+5)=7(6n+5)+3 | | -18-10x+12x=8 | | 10x+9-9x+6= | | 7y+10x=5 | | -158-9x=-9x+22 | | 6(c+5)c=9 | | 0.8x-4.9=0.7 | | 24x^2-2x-35=0 | | 7x+5-6x+8= | | 3a-4whena=9 | | 3+2c=3c+-4 | | -3=x+14 | | n+31=8 | | 8x+4/13+6x-7/13=18/13 | | -1/5z=9 | | 5f-3f+14=94 | | w+?=3 | | x/6-5=x+10 | | 17x-24x=1/2 | | 2*5/2 | | h^2+5h-2=0 | | z+7=-20 | | (2x-2y)+(2x-7y)=50 | | 56-2x=7x+18 | | (2x+1)+4=8 | | 22f+16=-29 | | 47-3x=7x+7 | | 7x+6=-4x |

Equations solver categories