If it's not what You are looking for type in the equation solver your own equation and let us solve it.
99=39+z
We move all terms to the left:
99-(39+z)=0
We add all the numbers together, and all the variables
-(z+39)+99=0
We get rid of parentheses
-z-39+99=0
We add all the numbers together, and all the variables
-1z+60=0
We move all terms containing z to the left, all other terms to the right
-z=-60
z=-60/-1
z=+60
| 4(3x+5=2 | | 4(x2+x)=(2x+1)(2x-1) | | -22=-4w+2(w-7) | | 10-3r=7 | | 8-7/10x=6+1/5x | | 7x-7=56-2x | | -2(4n-3)-7n=-9 | | 3x-10=-2x-45 | | -x+5=-5x+29 | | 25b+50=175 | | -6=8(y+3)-2y | | s/2+2=4 | | -6x=5(-2x-11)=137 | | -x-2=-2x-3 | | 2(u-5)-7u=30 | | -2x-17=-3 | | 7=⎪3x+9⎥+7 | | -4x+18=-5x+26 | | -17=2(v+2)-5v | | 0.625x+4=0.375x+12 | | -8=⎪x⎥ | | 8y=56= | | 9x-6=9(x-1)+16 | | U+5-10=1+3u | | 5-3x=12×+4 | | 13j-23=13 | | ⎪x-3⎥-6=2 | | -5+3u=2u | | x-50=77 | | 4m=6+5m | | -7x+29=-2-+29 | | 16.05-0.16x=16.55-0.07x |