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)
n+5*n+2 = 68 // - 68
n+5*n-68+2 = 0
6*n-66 = 0 // + 66
6*n = 66 // : 6
n = 66/6
n = 11
n = 11
| 90=5k+5k-10 | | -5=-4x+2x-5 | | 7w+9-w=3 | | 7w+6+6w=6 | | 82=-5n-5n+2 | | 3-3w+2w=0 | | -51=7k-k-9 | | 2x+6+x=-27 | | 10+5t-3t=32 | | -9+a+6a=68 | | 3x+3-4x=6 | | -12=a+2a+6 | | -4+2w+6w=-52 | | a+4-2a=14 | | 2b-4-6b=20 | | -6t+2+3t=-7 | | -4d+6+d=-18 | | m+4+2m=10 | | 7+4a+7a=95 | | 10+x-6x=10 | | -88=3k+6k+2 | | 10=6a-3a-5 | | 50=4d+2d-10 | | 2d+1+2d=-27 | | 3t+7+6t=70 | | -7+5m+7m=29 | | 7t-2+2t=88 | | -5n-8+2n=-8 | | -1-4x+5x=0 | | 2d+4+d=25 | | 64=7b+2b-8 | | 2b-6+3b=24 |