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+3 = (2*x+6)/2 // - (2*x+6)/2
x-((2*x+6)/2)+3 = 0
(-1*(2*x+6))/2+x+3 = 0
(-1*(2*x+6))/2+(2*x)/2+(2*3)/2 = 0
2*x-1*(2*x+6)+2*3 = 0
6-6 = 0
0 = 0
0/2 = 0
0/2 = 0 // * 2
0 = 0
x belongs to the empty set
| 4x/4+x^2 | | 6a+12=96 | | 113=35+a | | 117=79+a | | 6(x-5)=5x-32 | | (3x+9)/(16x+9)=8/19 | | 118=90 | | x^6+x^5/x=0 | | x^6+x^5/x | | 3*(4-3x)-2=-9x+10 | | w+1.22=5.33 | | v-6.27=7.53 | | v+4.1=8.91 | | w/2=56 | | 91=7u | | v/6=96 | | X^2-15X+30=3X | | 2+3x=2x+10 | | 3*x+25/4=0 | | F=(9/5)c+32 | | 3x-2/8-x-1/3=-1/2 | | x(2x+5)=140 | | 4x+5y=9.25 | | 3*22/5+22/5/2=4/5+4*22/5-3 | | 20x/32=80 | | 3x+x/2=4/5+4x-3 | | (5x-1)/2+(7x+5)/3=24 | | 2w*3v^9*5w^8v^5= | | (2x^2D^2+3xD+7)y=logx | | 5(3x+7)=42 | | (x^2+3x-4)/(x^2-16)=0 | | 1/4(5x-5)=8 |