If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
5-5*x = 20 // - 20
5-5*x-20 = 0
-5*x-15 = 0 // + 15
-5*x = 15 // : -5
x = 15/(-5)
x = -3
x = -3
| -7w-9=-51 | | 6b+4=-26 | | 7+2n=-13 | | 8+7a=36 | | 1+5n=51 | | -6-3k=18 | | -3+7b=-38 | | 4b+3=31 | | 2x=x+27 | | -2+4k=34 | | 9-4b=13 | | -9-7b=-79 | | -3a+10=4 | | -2+4m=10 | | -6-7t=-6 | | 9+2d=1 | | -2n+10=18 | | -6n-7=-79 | | 7k-10=60 | | 2-5a=37 | | 9S+8-S=2(2S+8) | | 4k+5=53 | | -2k-6=4 | | 4+5a=-51 | | -2+2d=6 | | 5k+2=7 | | 7a-10=-80 | | 4-2b=0 | | -7+7n=77 | | 9+2d=15 | | 4b+6=-30 | | 2+2w=18 |