If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
(2/5)*m+(2/3)*m+3 = -19/15 // + -19/15
(2/5)*m+(2/3)*m-(-19/15)+3 = 0
(2/5)*m+(2/3)*m+19/15+3 = 0
16/15*m+64/15 = 0 // - 64/15
16/15*m = -64/15 // : 16/15
m = -64/15/16/15
m = -4
m = -4
| 13/75=5/6x+2/5x+2/3 | | -2/3k+10-2k=62/5 | | -5/9+6/7d-2/7d=-71/63 | | n+1*3=15 | | -3/7-3a+7a=-255/7 | | 1/7+5a-a=197/7 | | 1/3d+5+3/5d=67/5 | | 9/10+7a+3a=409/10 | | -6-2/5b+4b=132/5 | | 6=-2/5n+n+3/5 | | 676/7=7d+d+4/7 | | 2+d+7d=10/3 | | 3x+8p=73 | | 31/8=w+1/2w+3 | | 13=4a+a-2 | | 4x+1/3-x=109/3 | | 139/84=-1/2x-6x+4/7 | | 1-2d+1/2d=-11 | | -8/5=5n+1/2n-6 | | 74=x-52 | | -6w+2/3+2w=74/3 | | -43/4=-m-2m-10 | | 3+4/7a+3/4a=205/56 | | -2/3t+4/9-6t=-88/27 | | -6m-1/3+6/7m=1289/21 | | 3x+8x=73x | | -1/30=m-1/3m+1/2 | | 3-5w+3w=-19 | | n/3=8 | | 15=14+x | | 3(b+5)=2(b-7) | | 1/2b-10-5b=-91/10 |