If it's not what You are looking for type in the equation solver your own equation and let us solve it.
129-w=171
We move all terms to the left:
129-w-(171)=0
We add all the numbers together, and all the variables
-1w-42=0
We move all terms containing w to the left, all other terms to the right
-w=42
w=42/-1
w=-42
| (-14)=2x-8 | | -7+x/2=-1 | | 5x+3x+2=15 | | 0.5+y=8 | | x-2/3=-4/9 | | 2(3x+4)=-14 | | 10x-6+2x=42 | | 0=2(1-t)^2-3(1-t)+11 | | 2z+45=180 | | 8.03a=-25.1a | | 2*3.14+d=5*3.14 | | 4(m+3)=−32 | | (28p/2)-5=8.4 | | 20-z=-5 | | k^2=145 | | 14x+109x=15 | | 0=2x^2-3x+11 | | 1080=333+(2z+45) | | 6+8y=10 | | -104-7×=36-3x | | 137.25=x3.28 | | 68+56=x | | 76-x=24 | | 2x-75=x+35=2x-20 | | 50=60t | | 15x+12=3(5x+4)= | | 50=6t | | Y=-104-7×=36-3x | | x+90=120 | | 42x+0=42x-0= | | m+13=39 | | 0.75x+1.50=10 |