If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
5*n-n-2 = -42 // + 42
5*n-n-2+42 = 0
4*n+40 = 0 // - 40
4*n = -40 // : 4
n = -40/4
n = -10
n = -10
| -21=4b+2b+9 | | -22=2x+4x-4 | | 8+n-5n=-36 | | -9-2m+5m=-39 | | 3m+3+4m=17 | | 10+k+7k=66 | | 1+5n-6n=1 | | 10+5t-t=22 | | m+2-3m=-20 | | d+8-3d=-12 | | k-5+4k=-50 | | 65=4t+7t+10 | | -3-2x-6x=-99 | | 5+5b+7b=-55 | | -2=5t-6t+7 | | -8=-4a+a+4 | | 1+5x+5x=61 | | -3a-6+7a=-34 | | 31=b+4b-4 | | x+10+3x=54 | | 1=2d-4d+1 | | -3a+2+a=-22 | | 4t+5+2t=-13 | | 91=4m+6m+1 | | a+3+3a=3 | | 6b-2-7b=-2 | | t-9+t=-33 | | 4+5m-3m=-8 | | 141=6b+5b+9 | | 6w+9+w=23 | | 44=x+2x+8 | | 6m-9+7m=69 |