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)
(6*x)/7 = -18 // + 18
(6*x)/7+18 = 0
6/7*x+18 = 0 // - 18
6/7*x = -18 // : 6/7
x = -18/6/7
x = -21
x = -21
| 4c-2-2c=10 | | x=-1/2x-2 | | .083(156x-17)=21(18+12x) | | 4x^2-9x=63 | | .25a+b=2c | | .08333(156x-17)=21(18+12x) | | .08333(156x-17)=19(18+12x) | | .08333(156x-17)=18(18+12x) | | .08333(156x-17)=12(18+12x) | | .08333(156x-17)=0(18+12x) | | 2x-4(x+3)= | | .08333(156x-17)=70(18+12x) | | .08333(156x-17)=43(18+12x) | | -9x+3.1=5x-9.5v | | -6b/2=-36 | | .08333(156x-17)=.75(18+12x) | | 3/5(x-5)=-6 | | 3z+1=8x-4 | | .08333(156x-17)=.1(18+12x) | | .08333(156x-17)=6(18+12x) | | .08333(156x-17)=1(18+12x) | | -7x+5y=-9 | | .08333(156x-17)=.083(18+12x) | | .08333(156x-17)=17(18+12x) | | 12p-9p= | | .08333(156x-17)=156(18+12x) | | 16x+10-19x=11-5(2x-4) | | 6+x+5x-12=6+x+7x-48 | | .08333(156x-17)=3(18+12x) | | .08333(156x-17)= | | 8-4b=-7d-7+2+3d | | 88+a=(11)(12) |