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)
50 = 7*n+2*n+5 // - 7*n+2*n+5
50-(7*n)-(2*n)-5 = 0
50-7*n-2*n-5 = 0
45-9*n = 0 // - 45
-9*n = -45 // : -9
n = -45/(-9)
n = 5
n = 5
| 8-2x+x=-2 | | 10+m-7m=-2 | | 3w-1+6w=80 | | y^2=x^2+121 | | 6d-6+2d=58 | | 12x^6+28x^5-21x^4-74x^3-21x^2+28x+12=0 | | 16=-2b+3b+8 | | 38xy=532 | | -10+7w+6w=81 | | 5=2k+3k+5 | | 5n+9+4n=18 | | -21=6x+2x+3 | | 3-3w+5w=21 | | 28+x=74 | | log(5-4x)=0 | | -5m+7+m=-9 | | -5x+2+2x=35 | | 5t-1+7t=119 | | m+4+4m=44 | | -5a-3+3a=15 | | 3t+10-7t=-38 | | 2=3k+k-6 | | 110=5n+4n+2 | | 10+4x+5x=-35 | | 3a+9-5a=29 | | 6t+5-7t=-2 | | -5=7t+4t+6 | | -69=7d+d+3 | | -35=3m+7m+5 | | 7+5a-7a=7 | | -8-w+5w=0 | | 9-7x+5x=9 |