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)
(3/5)*m = 15 // - 15
(3/5)*m-15 = 0
3/5*m-15 = 0 // + 15
3/5*m = 15 // : 3/5
m = 15/3/5
m = 25
m = 25
| 10(4x+9)-4(6x-4)=74 | | 9(2x-1)=3(6x+4) | | 5(x+9)+3=-5(x-3)-8 | | 6+15r-1=9r+55-4r | | 8x^2-6xy-5y^2=0 | | -2x+5=20 | | -6.4(3s+6)-1.9(2s-4)= | | 16x^2-8e+1=0 | | 4x^2-37x+51=-8x+6 | | 54x-3=42 | | -6.7(4s+6)-2.2(2s-5)= | | 49a^2-169= | | 3z+6z=81 | | 4x-20=180+6x | | z/20=-6 | | -3t^2+18t=0 | | 5x+10=2x+7 | | 18x=8+17x | | -10.8b=54.0 | | 42x+35=210 | | -(4a+3)-(a-4)=16 | | 12f^2-12jy^5=0 | | 340(11/68)(21/25) | | x^2-4x+20=6x-1 | | 6i^3-2i^9= | | 10x^10y^5-16xy^4=0 | | 3[5c-1]=4[3c+2] | | 7+16z-4=5z+17-3z | | 5t^2+17t-12= | | 4x-8=9x+7 | | 340*11/68*21/25 | | 24=3t^2+18t |