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+12 = y*((11*x+1)/2) // - y*((11*x+1)/2)
3*x-(y*((11*x+1)/2))+12 = 0
(-1*y*(11*x+1))/2+3*x+12 = 0
(-1*y*(11*x+1))/2+(2*3*x)/2+(2*12)/2 = 0
2*3*x-1*y*(11*x+1)+2*12 = 0
6*x-11*x*y-y+24 = 0
(6*x-11*x*y-y+24)/2 = 0
(6*x-11*x*y-y+24)/2 = 0 // * 2
6*x-11*x*y-y+24 = 0
6*x-y+24 = 0 // - 24-y
6*x = -(24-y) // : 6
x = (-(24-y))/6
x = (y-24)/6
x = (y-24)/6
| 4(x+7)-36=13(x-2) | | 1/6(3n-5)= | | 56x^2-35x=0 | | x-((x^2-7)/(2x)) | | 4g+4(-4+5g)=1-g | | 0.25w=1.5 | | x-((x^2-7)/(2x))=x/2+7/(2x) | | 14y=196 | | 2/6+3x/2=7/12 | | 1/3m=2/3 | | 12x^2+8=0 | | 4r+5+3r=10 | | 3x+12=11x+1/2y | | 4x-2-7x+7= | | 5=0.5(q-10)+2 | | 8(1+9n)=22 | | 7m+3n+n+5-m-3n+8= | | 10c^2-65c-35=0 | | X+-46=-53 | | 10+5q=14+4q | | (7b-1)(8b+3)= | | -7/6(w+6)-1/3(2w+21)=5/2 | | 2(3g+2)=1/2(12+8) | | 12/2-1 | | 4.20=.75s+u | | 2+x2/5=5x+2 | | X+-35=12 | | 4u^2-23u+15=0 | | -7/6(w+6)-1/3(2w+21)=5-2 | | 13x^40= | | 9-6x-7-9x=5 | | -5(x-3x)=-2(x+4) |