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 = (4/3)*x+6 // - (4/3)*x+6
(2/3)*x-((4/3)*x)-6-6 = 0
(2/3)*x+(-4/3)*x-6-6 = 0
-2/3*x-12 = 0 // + 12
-2/3*x = 12 // : -2/3
x = 12/(-2/3)
x = -18
x = -18
| (7X^2)-X=6 | | 105-4x=10+21 | | y/7+6=121 | | x^2+6x-120=0 | | 4(5x+10)=280 | | 2(9+7x)=66 | | 8y^2-1y+102y+4=y+10 | | 12(x+2)=3(4x+1)+21 | | 3*12.50= | | 8y^2-1y+102y+4= | | -84x*21x= | | c+8/c^2 | | -4=7/29m | | 3x=(35-x)4 | | 1/2n-6=n-10 | | h-4=1 | | -3(-5+x)=21 | | 100-6x=12x+22 | | 5x^2+5(7x^2-x)-4x= | | -5-9x=-59 | | -36*3/7 | | -(x/6)=5 | | x+((5+2x)^1/2)=5 | | 48-n=4n | | 0.75(x-4)-0.75x=3 | | 0.75(w-4)-0.75w=3 | | x+(5+2x)^1/2=5 | | 11x=198 | | -16.4=10.5+6.2d-5.2d | | 92178491889x=8917487812778.111346125875 | | -1/4-2/3 | | 0.5p+1.2=p+3.2 |