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)
(-1/7)*x = 9 // - 9
(-1/7)*x-9 = 0
-1/7*x-9 = 0 // + 9
-1/7*x = 9 // : -1/7
x = 9/(-1/7)
x = -63
x = -63
| 20+3y=4y^2 | | -5=c+-76 | | 2t+7=51 | | g+6=20 | | 2r=2 | | 3x-y-3z=23 | | 7h+1=15 | | 3x+3+2x-8=180 | | 8=b+-7 | | Y^2+k^2=196 | | q+2=9 | | X/0.4=6.25 | | 3(y-3)=6x | | 9x^2+37x-4=0 | | 3=q/2 | | 14x-10=-38 | | 3(x)=-45 | | -3j=3 | | 9x^2+37x-14=0 | | 18m+1=37 | | 2=z/3 | | 9=f+1 | | w-5/w+11 | | 24/5+83/4 | | h(x)=-5x^2+10x-9 | | 2m=6 | | 3=g/3 | | 47k+115=-26 | | 3 = g3 | | z+1=8 | | 3w-1/2w-1 | | X/6-39=130 |