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 = x+(1*3)/2+12 // - x+(1*3)/2+12
3*x-x-((1*3)/2)-12 = 0
3*x-x-3/2-12 = 0
2*x-27/2 = 0 // + 27/2
2*x = 27/2 // : 2
x = 27/2/2
x = 27/4
x = 27/4
| 9.1=x-0.7 | | 3z+8=9 | | 4x+(5x+3)=9x+3 | | 397+485+979=x | | (3u-5)(7+u)=0 | | 2.5(p-4)=3(p+2) | | x-3x+2-2x-7= | | x-3x=2-2x-7 | | 3k-(-2k+7)= | | -14=b/3 | | 3/5x-6=36 | | y/4=10 | | 9x^5-x^3=0 | | 3/7x+6=9 | | 11x-5=6x+30 | | 12(6x)+9= | | 8x+10=6x+20 | | 6x+9=3x-12 | | 4(x-1)-3= | | x^4-10x^2-x+20=0 | | 88t-234/234+2=88t+1 | | 6t-(144/12)=96 | | 6x-10=x^2 | | 6t-(144/12) | | 3x/5-0.5=9 | | 2x+11=(8x-12)+10 | | 433t-(144/12)=96 | | 4x^2-1=3x | | 3p^2-14p+8=0 | | 2x+1-5=5x+1 | | -4-8r=-(2r-2) | | 1/5x+2=17 |