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)
9-(7*x) = (4/5)*x+357/5 // - (4/5)*x+357/5
9-(7*x)-((4/5)*x)-(357/5) = 0
(-4/5)*x-7*x-357/5+9 = 0
-39/5*x-312/5 = 0 // + 312/5
-39/5*x = 312/5 // : -39/5
x = 312/5/(-39/5)
x = -8
x = -8
| -x+1/7=-6x-279/7 | | -x+4/9=5x-118/99 | | 7-9x=34-30x | | -1/7x+9=-6x+271/21 | | 6x-5=3x-9/2 | | 4+x=-5/7x-116/7 | | 6/7x+8/9=4x+254/63 | | 5/6+6x=4x+17/6 | | 6x+2/5=341/40-7x | | 2/5x+5/9=-2/45+x | | 2/3x-6=-238/3-6x | | -1/4x+7=33/4+2x | | (8z-3)(3z+4)=(6z-5)(4z+9) | | 9/10+3/4x=7x-607/20 | | -1/5x+5/6=53/30+x | | 1+4x=-7x+133 | | -x+10=x-4 | | -1/3+6/7x=-1/5x-923/105 | | 1/2-4/7x=1/6x+269/42 | | x+4=(2x-5) | | 1/3x+1=-37/3+3x | | -2/7x+2=-2/7x+2 | | 1/4x+3/7=-233/28+2x | | 5x+10=7x+24 | | 3/7+4x=-2/3x+295/231 | | -1/2x-1/3=-12+2/3x | | 2x-9=4/7x-433/42 | | 1/4x-8=-117/14+3/7x | | 2/7x+1/3=x+47/231 | | -1/4+4x=x-49/4 | | 1/5x-6=-164/25+x | | 1/5x+1/3=-x+14/15 |