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)
5*x+3*x+8 = 72/7 // - 72/7
5*x+3*x-(72/7)+8 = 0
5*x+3*x-72/7+8 = 0
8*x-16/7 = 0 // + 16/7
8*x = 16/7 // : 8
x = 16/7/8
x = 2/7
x = 2/7
| 8+9r-5=9r+33-6r | | 1/3x-11=42 | | ln(x)+ln(x+1)=1 | | 20i-10=0 | | 2(y+5)=2(y-3) | | 1/6x-3x+3=-76/3 | | 59-3x=10 | | 2x-1=-1x+8 | | 3x=x+2x | | 9+3x=23/3 | | 2=-2+4u | | m^3-9m^2+15m+25=0 | | 6+3/4r=-6 | | 11(3a-2)= | | -17=5v+8 | | -7x-10=-52 | | 3n^2+10n-48=0 | | -9x-24=-204 | | cotgx=0 | | log(x)=0.271 | | 1x-4x+2x=6-7 | | -43=7+5x | | v^2-4vz-45z^2= | | 4e^3x-1=5 | | 5y^3-11y^2=2y^2+6y | | 2v-3=-17 | | ln(2x)=0.6 | | 35/8/70000 | | -6=6+3u | | 15+x=14 | | -3(-9+8)-9n= | | 700-35n=450+15n |