If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2n+9=2(2n=4)
We move all terms to the left:
2n+9-(2(2n)=0
| 4/5x+58=32 | | 1/3 +a=5/4 | | 10^x=43 | | 5x=7=3=8x=4-3x | | -x+13=-3x+1 | | 5×y-8=17.5 | | 4/v-1=2 | | 36(26-3.5x)=12(3x-8)+27.6 | | x+7=1/2(7-5) | | 5x+12=-2x+12 | | x+7=1/2(6-5) | | |x|-8=20 | | 3=2v-1 | | 6x+8=4x-16 | | 5+m-5m=-4m+6 | | 8x-5=53 | | 15-6(2-3x)=15x+6 | | 8(x-4)=-4(x+1)+28 | | X^2-y^2=140 | | 6×y+8=56 | | 2y-3(y+1)=5y-7 | | x+7=1/2(5-5) | | |q−8|=14. | | 6×g+8=56 | | 2.50+2.00x=16.50 | | 7+n/2=-2 | | f/6 =2.5 | | 4(-4x2)+2x+5=-57 | | 3x+(2x)^2=810 | | 2b+9-3b=2b+11 | | -18+2x=1-(1+7x) | | 2n=n+2 |