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)
3*(x-4) = 42/14 // - 42/14
3*(x-4)-(42/14) = 0
3*(x-4)-3 = 0
3*(x-4)-3 = 0
3*x-15 = 0
3*x-15 = 0
3*x-15 = 0 // + 15
3*x = 15 // : 3
x = 15/3
x = 5
x = 5
| 7x+2=5x-8 | | 3x^2-8=-20 | | -166=-2x-3(-6x+18) | | 6x+2=-7-12x | | log(x)=0.0000004 | | X/6=6/4 | | ln(x)=0.00000004 | | y-7x=4x+8 | | 9x+11=4x+30 | | -28+2x=10 | | -3+3x=-9 | | 63x=90 | | 6.3y=5.2-1.1y+12.1 | | 4x-7=8x+3 | | 90x=300 | | 2x+2y=75 | | 1/3(x-3)=(2x/3)-(13/3) | | 1/2(3x-6)=2/3(2x-3) | | 1.6x+0.3x=2.3+2.3x | | 9x-2x+66=9x+24 | | 9x^2-62x=7 | | 23=1+4x-6 | | 3a/7-9/7-a/7 | | 6t-2=28 | | 1/3x^2-2x=0 | | Y=-1/6x-8/3 | | 1/3(x-3)=2x/3-13/3 | | -6m=200m | | 8n^2+10n-63=0 | | 5v=21-2v | | 3x+2y=10y | | -6+2y=-12 |