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)
(3/5)*x-(2/3) = 13 // - 13
(3/5)*x-(2/3)-13 = 0
(3/5)*x-2/3-13 = 0
3/5*x-41/3 = 0 // + 41/3
3/5*x = 41/3 // : 3/5
x = 41/3/3/5
x = 205/9
x = 205/9
| 6.6x-12.1=34.1 | | 4x+32=12-8 | | 9x^3-5x^3= | | 5t+-9=3t+3 | | 4/7=10/n | | x=4x-12+3 | | 10x^21-15x^7+60x^5= | | 2(5x+1)=16(X) | | 5-7x/3 | | 64x^8+24x^10-4x^2= | | -12x-14=-98 | | u+2t=36 | | 4/9x15 | | 7-4a=2a+4 | | 12=3v-33 | | 64x^2+24x^10-2x^2= | | 58+998-456= | | 3x-4(-3/5)=18 | | 5(4+4x)=160 | | -14x-16=-44 | | x^2=1/25 | | 6-8=13 | | 3/10=x/9 | | logx(4)=1/2 | | 6=y+5*cos(y) | | 4(7+x)=52 | | Y*1.666666666666=y+10 | | 12+v=5v-33 | | x^2+7x-249=0 | | 120=5x+45 | | x+2x+x+12+x-9=117 | | Y*1.66666666=y+10 |