If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2n+3n-5=90
We move all terms to the left:
2n+3n-5-(90)=0
We add all the numbers together, and all the variables
5n-95=0
We move all terms containing n to the left, all other terms to the right
5n=95
n=95/5
n=19
| 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | 2n+3n-5=90 | | (YxY)xY=11 | | YxYxY=11 | | YxYxY=11 | | x+(0.12*x)=25 | | 70=30×4x | | 4x×30=70 | | 4x×30=70 | | 4x×30=70 | | 7^(-4x)=12(-x+10) | | 7^(-4x)=12(-x+10) | | 48-m=20 | | 3•2=q | | 3•2=q | | XxXxX=27 | | 4x+3=2x+-9 | | 4x+3=2x+-9 | | 414÷x-10=-23 | | 414÷x-10=-23 | | 414÷x-10=-23 | | 414÷x-10=-23 | | 414÷x-10=-23 | | 414÷x-10=-23 |