If it's not what You are looking for type in the equation solver your own equation and let us solve it.
20x-40x=x
We move all terms to the left:
20x-40x-(x)=0
We add all the numbers together, and all the variables
-21x=0
x=0/-21
x=0
| 20-3x=7x+12 | | 16u+2u-u-8u=9 | | 3x+47+x+7=108 | | 20+40x=0 | | r4+-10r2+9=0 | | 72=-12v | | 9g-8g=3 | | 11t-3t=8 | | h=(500−260)÷2 | | 3h=–8 | | 120/x=4;x=5 | | -5/6=z+1/8* | | 40+2x=0 | | 4/3•x=52 | | t-22/3=-5/2* | | 5.231=-2.012+x | | 4h-4=h+14 | | 4x-4=4x+Y | | 15h=45.00 | | 1/3=c-4/5 | | |2x+1|=|3-5x| | | C=15.00-0.05x | | –5b=–65 | | -15.8=y-24.3* | | -1/3=c-4/5 | | 5(2x-10)=3x+7(x-2)-36 | | 7(x4)+2=7x+7 | | 10=-9+b | | 14=11+(w)/(8)*6 | | 5(0.7)^x=4(0.8)^x | | 5e+5=2e+26 | | 2080=(26,000)(0.04)t |