n-8n=21

Simple and best practice solution for n-8n=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 n-8n=21 equation: 


Simplifying
n + -8n = 21

Combine like terms: n + -8n = -7n
-7n = 21

Solving
-7n = 21

Solving for variable 'n'.

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

Divide each side by '-7'.
n = -3

Simplifying
n = -3

See similar equations:

| -15xy^12z/20x^9y^7z | | 12+6+15+r=37 | | 2c=3+15 | | 0.22-12.7d+17.2d=-19.28+3d | | 100t+310=570 | | -2.87=1.7m | | 14x+17=12x+19 | | 1-(1+3x)=-80 | | -8x-4x+3x+2= | | 14(6c-4)=2c-5 | | 9r^2-340r-655=0 | | 3(r+12)=300 | | -16.5k=-19.24-19.1k | | -5+20=-6 | | 100t+50=410 | | 10+a+1+18+4=38 | | 8x-3m+4x+10= | | N(n-3)/2=14 | | 11x+12=9x+x+15 | | 11x=80 | | -18.1t-17.46-4.6t=18.26-15.1t | | 9+5(4x+4)=0 | | 150t+30=420 | | my+age+plus+7=14 | | 38/x=2/6 | | s/2=-0.2 | | 0.5(-12p-4)= | | fr+6=17 | | 3(3-6)+8c=27-4c | | 120x=1.5 | | 2.5n-1.98=9.43+3.2n | | p/3.6=7.28 |

Equations solver categories