If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
(1/3)*(y+12) = 3*y-(5*(y-5)) // - 3*y-(5*(y-5))
(1/3)*(y+12)+5*(y-5)-(3*y) = 0
(1/3)*(y+12)+5*(y-5)-3*y = 0
1/3*(y+12)+5*(y-5)-3*y = 0
1/3*(y+12)+5*(y-5)-3*y = 0
16/3*y-3*y-21 = 0
7/3*y-21 = 0
7/3*y-21 = 0
7/3*y-21 = 0 // + 21
7/3*y = 21 // : 7/3
y = 21/7/3
y = 9
y = 9
| 3f-30=5f+12 | | 6-9x^2=0 | | -7y+15=-2(y+4) | | 12+-2x=-36 | | -325.91.5= | | 15x^2-13xy+2y^2=y | | -12w+4=-11-11 | | 4x^2+14x-8=360 | | 3(a+4)-2a+7= | | 4/7+2p=2/7 | | 9x-0=45 | | x-(x-28)=180 | | 2x+4=66 | | 8x+12=27x-45 | | 4(x+2)+2x=3x+3+11 | | 2.5x+x=9 | | 2x+3+2x-1+4x+2=180 | | 1/2x+10=32 | | (x/9)+(x/2)=(11/18) | | 67+8=y+2 | | 4x^2+24x+336=540 | | 9+x=23+x | | 1/3+p=11/6 | | 13-4=i | | -3z-19=-2z+18 | | 8(x+3)-6=25-2x-7+10x | | 19=-8+6(z+5) | | 1/4+1/2k=4 | | x-2y=-18 | | 4p-31=11-2p | | -1+7(x-2)=16x+5-9x | | 9xy-5y=4 |