If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x=12=7x
We move all terms to the left:
3x-(12)=0
We move all terms containing x to the left, all other terms to the right
3x=12
x=12/3
x=4
| 9x-(7x+6)=3x-15 | | -5.2(x-1.4)=67.6 | | 15x+10=15x | | 1g=3g | | -31=-3y+9-8y | | 30.06=6g+3.84 | | 12x+8=4x+58 | | 79=x1.1 | | n+5/2=2 | | x=3+5+4+3/2x | | 8r=+4=10+2r | | 2=-2(x+1) | | x=5+5+2+2+x | | −8x+8=7x+10 | | 2x+3x+4=34 | | 3(2x-6)=(x+9) | | -21=1/2c=11 | | 3x+3+2x+9=180 | | -3r+-6=-41 | | -35=-10+-5m | | F=6/5(n-16) | | -24=3(x+10) | | −5d+4=12 | | 16=1+t | | 114-v=171 | | 32=3y+y | | -3=p-9/2 | | -4/9u=-20 | | 13=8+n/4 | | 8y-9-5y+8=0 | | 6=-z/5+8 | | 32+t=12. |