If it's not what You are looking for type in the equation solver your own equation and let us solve it.
201-u=42
We move all terms to the left:
201-u-(42)=0
We add all the numbers together, and all the variables
-1u+159=0
We move all terms containing u to the left, all other terms to the right
-u=-159
u=-159/-1
u=+159
| u/3-14/15=u/5 | | 5-7=x/3 | | 3x+8x-7=70 | | 10u+7=5(2u-4)-9 | | 11x/10+2=9x/8 | | 273=77-v | | 3n-5=1/2n+9 | | 1.2x-3.3=0.7x+1.15 | | 5=-2/3x-1 | | —4x+2x=4+4x | | F=5/4(n-5) | | -(-7+x)=-5 | | z+21/7=-18 | | 8r^2–9r+1=0 | | 9/10=x-9/4 | | -6·1-5=2m | | -3(w-7)=8w+43 | | 8r2–9r+1=0 | | 8x-4=8x-8 | | 1/8(3d-2)=1/(4d+51) | | x/3-8=35 | | 3x+-5=2x+12 | | 1/8(3d-2)=1/4d+5 | | -3(x+5)=66 | | 1.5m/2=5/8 | | 12+10x=-6+7x | | -3.8g+5+2.7=12.7 | | 3x-4+2x=4 | | 4d=9 | | 2x+1°+x-10°=90 | | F(x)=9x2-4 | | 4-3x=2/3 |