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)
X/3-(X/5)+12 = (3*X)/5-(X/15)-28 // - (3*X)/5-(X/15)-28
X/3-(X/5)-((3*X)/5)+X/15+12+28 = 0
X/3-(X/5)+(-3/5)*X+X/15+12+28 = 0
40-2/5*X = 0 // - 40
-2/5*X = -40 // : -2/5
X = -40/(-2/5)
X = 100
X = 100
| x-2512=-6797 | | 5x-3=3(x-1)+4 | | x-1343=-612 | | 5=3X/5-28-X/15 | | x-3273=-2843 | | 5-2x=2-5(x-3) | | 4(2x+5)+7=3x-3 | | 3x+4(5)=8x+5(2) | | 12f^2-7f-10=0 | | x-223=-3948 | | -8-2(x-7)=3(x+2) | | x-752=-4265 | | 9+3-2=14 | | x-1953=-2475 | | x+2/3-2=x/3 | | x-1037=-346 | | x-1318=1479 | | x+3/2=x+1 | | x-1409=-2317 | | x-1832=-5988 | | 8x-12-9x-30=11 | | x-690=-160 | | 2n+19=8n-5 | | 3x^2-9x+14=0 | | 5(x-1)=55-5x | | x-2004=-4936 | | 3*8-(9-7)3= | | x-4550=-9006 | | -9(2+3x)=3x-9(6x-6) | | d0*(5/3) | | (5x-4)/(2x-3)=10(3-x)/(17-4x) | | 4y+6x= |