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)
13-((2/3)*x) = 5 // - 5
13-((2/3)*x)-5 = 0
(-2/3)*x-5+13 = 0
8-2/3*x = 0 // - 8
-2/3*x = -8 // : -2/3
x = -8/(-2/3)
x = 12
x = 12
| A/3t4=6 | | -2(5n-2)=12 | | -6a+3=-3 | | 27x+4y=193 | | 36a+42a^2-78= | | -6n+14=10 | | 5x+4=3x+25 | | 3^2y×4/2×y^3 | | 12/4=3 | | 3^2y×4/2×xy^3 | | [-12/4]=3 | | -1+8n=3m | | 3x^2y*4/2×y^3 | | 2z+z=18 | | x/5=3;15 | | (18/x)=x-3 | | 4p-3=P-6 | | x+2(x+5)=31 | | N+5(n-l)=7 | | X+3x-2=x+3 | | 3.2-1.054x=-2 | | 3.2-1.054=-2 | | X+85=6x+45 | | 3.2-1.054x=2 | | -12+195= | | 19=10+9(x-1) | | 172=4m-4(-6m-8) | | 16=8+8(x-13) | | 2x+4y+z=50 | | -12-195= | | 6=x^4+x^3-40x^2 | | b/6=1/7=17 |