If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x-4x=123
We move all terms to the left:
2x-4x-(123)=0
We add all the numbers together, and all the variables
-2x-123=0
We move all terms containing x to the left, all other terms to the right
-2x=123
x=123/-2
x=-61+1/2
| 7−x/7=−2 | | xxx-25=0 | | 31p-4+25p=2+42p | | 7-7f=9-8f | | 5h+5h=9h | | x+6+8=2x-x+14x+6+8=2x−x+14 | | 4(5x+2)=5(1-2x)+33 | | 4y’’–8y’+3y=0;y(0)=1;y’(0)=-1 | | x/12=11/12 | | X2-y2=52 | | x/12-2/3=1/4 | | (7-4y)+9y=27 | | 93=f+60 | | 96=v+15 | | 4x−1=3x | | 98=t+25 | | 180n-540=2880/n | | x*4+85=x*8-11 | | 190=h-100 | | 6x^2+14x+14=0 | | -50-9n=6+2n | | (n-2)180+360=900 | | -4-2v=8v+29 | | 9z+10=2z-32 | | 1=8-4n | | 12(x+8)-10(x+11)=13(x+8)-12(x+11) | | 51=r-34 | | (x+5)²+(x+5)(x-1)=0 | | 4=f-18 | | X+21=9x-11 | | 6y-37=11 | | 4y+5=9y-4 |