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)
X/12 = 18/42 // - 18/42
X/12-(18/42) = 0
X/12-3/7 = 0
1/12*X-3/7 = 0 // + 3/7
1/12*X = 3/7 // : 1/12
X = 3/7/1/12
X = 36/7
X = 36/7
| 3z^2+8x+4= | | -8(x-7)=56 | | 3b+8/-2=10 | | 4x-2=10x-28 | | 6/7x-3=13/7 | | -x^2+4x-32=0 | | -4(2k+8)+6(3k-4)=-16 | | x-1.5x-.6=1.5(x+.33) | | 2x^2+20x-337.5=0 | | 2x^2+20x-3375=0 | | 11/4y=-33/4 | | x-1.5u-.6=1.5(u+0.33) | | 4(3x-2)+4(8x-9)=29 | | -25-4=46 | | -4(-5x+6)-2x=6(x-2)-3 | | 15n=5 | | -65=13z | | (4)(-2X)+(-15X)= | | 40x=10 | | 100=4s | | 5s=125 | | 2*0-1= | | 2x^2-xy-28y^2=0 | | 16=2m | | 5(16a^2+8a+1)= | | 40/52=x/12 | | 9(2x+1)=3x-8x | | 4(X-1)=6-X | | 8k=14 | | 0.5=x-80 | | 6.3=0.0y | | 3x^3+9=x^2+27x |