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)/2 = 20 // - 20
x+(3*x)/2-20 = 0
5/2*x-20 = 0 // + 20
5/2*x = 20 // : 5/2
x = 20/5/2
x = 8
x = 8
| -2(-8y+9)-9y=6(y-2)-2 | | -1-62= | | -2(y+1)=5y-3+3(3y+3) | | log[5](x+118)+log[5](x+18)=5 | | x+2x+17=77 | | 3(x+1)=-5(2x-3)+5x | | 3x+4y=-17 | | 0.2(0.1x+0.5)=-0.4 | | -16x^2-10x=0 | | 4+3x-10=12 | | -2/p^-3 | | 4-3x+10=12 | | 1/2x=x+2 | | 4-3x+10= | | 8(y-1)/3=-3y | | x+7y=5-x+2y-13 | | 9*x-13=7*x+11 | | (5r-6)(r+3)-(2r-1)(r+3)= | | 1/p^-1 | | 5x-10=25x-15 | | 3/5*1/2-2/3 | | 4b=3b+9 | | 1/2(4x-2)=2x | | -2(x-3)=x-3 | | -2(x-3)=x-4 | | 5.4a+5.64=9.6(a+0.5) | | -7w+37=6(w-9) | | 2e(5x)=12 | | 4.2x+1.29=27.93-3.2x | | 6-4(x+2)=2x^2 | | -4(y+2)=-9y-38 | | log(x+15)=0 |