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)
(2/3)*(x+6)-((1/5)*(x-10)) = 13 // - 13
(2/3)*(x+6)-((1/5)*(x-10))-13 = 0
(2/3)*(x+6)+(-1/5)*(x-10)-13 = 0
2/3*(x+6)-1/5*(x-10)-13 = 0
2/3*(x+6)-1/5*(x-10)-13 = 0
7/15*x-13+6 = 0
7/15*x-7 = 0
7/15*x-7 = 0
7/15*x-7 = 0 // + 7
7/15*x = 7 // : 7/15
x = 7/7/15
x = 15
x = 15
| 18r=10-r | | 2x^2+-7=74 | | -1/2y=8 | | 3-6-0(3+6)20-14= | | -6x+5-5x=-105 | | q-(4q-7)=5q-(q+21) | | -2=2x-6x-2 | | 6(4k+2)=2k+14 | | 9=5x-3x+9 | | 3(n+4)=.5(6n+5) | | 6(x-3)-5(x+2)=8 | | -5x+9-x=9 | | 10(7-4b)-9(21b-8)=0 | | -1/1(x-1)= | | -1+7x+3x=119 | | 8(6h-11)+5(20-3h)=0 | | 2x+23=12 | | 9+x-6x=4 | | x-(4x-7)=5x(x+21) | | 1.9+0.2x=0.3 | | 3(x+2.42)=2x | | 1/6(x-6)= | | 2.7x-43=1.8x+2 | | (x)=x(71-5x) | | 4+3x=40 | | 7x+3+7x=171 | | 2xy-x^3-5=0 | | 2m^5-3m^3-2m=0 | | 5x-4-x=-20 | | y/8-1/2=6 | | 3+7x=5-9x | | (x)=120+14x |