If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+40=9x+4
We move all terms to the left:
3x+40-(9x+4)=0
We get rid of parentheses
3x-9x-4+40=0
We add all the numbers together, and all the variables
-6x+36=0
We move all terms containing x to the left, all other terms to the right
-6x=-36
x=-36/-6
x=+6
| 6x+10+2x+10+120=180 | | 8.4=t/5.7 | | 8x-45+7x-45=90 | | 3•+6=x+14 | | 3a+a=4 | | 51-8=11—7x+12x | | 13=f+10 | | x-(.4x)=85000 | | -11=-1/2(8-2b) | | 7x+5+3x-3=52;x=5 | | 2(4x+9)=-46+8 | | 3x+8=3+4x | | 3x-7=130 | | 6x+10+2x+10=120 | | -52+9x=6x+35 | | -4-6j=-7j | | 3x-11=22* | | 7x-8(=x+7)=16+7x | | 365+75x=1040 | | ((n-2)*180)/n=1800/n | | -6x+-7=17x+-444 | | 8x+26+x+10=180 | | 215=(7x+8) | | k+19=31 | | y/(-6.1)=-6.2 | | -f+3=5 | | 48=x•12 | | -7p-9+8p=3 | | -12=-4e | | 4x-7=50+3 | | c/4+14=17 | | w-7/20=9/20 |