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)
(-6/7)*x = -18 // + 18
(-6/7)*x+18 = 0
18-6/7*x = 0 // - 18
-6/7*x = -18 // : -6/7
x = -18/(-6/7)
x = 21
x = 21
| 5x+8+4x=44 | | 6x^2-12x+16=0 | | 5=-3x+4x+5 | | 3/2+2y=4y-1/6 | | (3-x)/x=0.5 | | -8+x+4x=52 | | 7/2x+1/2x=5x+18/2+7/2x | | 4x-0y=8 | | X(x-3)=-2 | | -1/6x=-9/10 | | 9x+-5=-41 | | 4x-3+x-5-3x=-x+5-3x+5 | | 8/3x+1/3x=4x+11/3+8/3x | | 1/6+2y=4y-1/6 | | 5x(x+1)=(4x-7)(x+1) | | 5-y=(x+40) | | 136-(7x+5)=7(x+8)+x | | 4mn-5=nform | | 2x+3=4x-19 | | 3/4(16x-24)=0 | | 2x-7=-17 | | -3(7x+1)=-3 | | X*1.25+4= | | 5(7x+8)=285 | | 4y=7x+7 | | 5(1-3x)=-160 | | -10+5x=45 | | 2.1x-2.16=0.48-5.4x | | -6x+7=13 | | 3.8h-4.2=7.3h+27.9 | | 4*x+1500=2860 | | 11x+17=5x+107 |