If it's not what You are looking for type in the equation solver your own equation and let us solve it.
399=133x
We move all terms to the left:
399-(133x)=0
We move all terms containing x to the left, all other terms to the right
-133x=-399
x=-399/-133
x=+3
| 2z−10=10+4z | | 95x=1235 | | (3x)⋅5+8=18 | | –10+2c=10+5c−5 | | 133x=399 | | 10+6h=10h−10 | | 5−5v=–2v−10 | | 3,5-6b=0 | | –2r−6=–3r+3 | | 1+3j=2j | | 4÷9-3÷p=0 | | 62=(3x+11) | | 0.5x^2-x+0.15=0 | | -98x+7=16 | | 2x+5•(-5x/2+13/2)=29 | | 30=‐5×12n | | ^3-15x^2+62x-72=882 | | 64x2+48-32=0 | | x^2-x+0.15=0 | | 7a-3=12+2a | | 64x2+48x−32=0 | | 2x2+2=3.5x | | 2k=21-k | | -2x–4=-5x+12 | | 7w−12=51 | | y/2−7=8 | | 5x-0,8=1,2x-2,5 | | 7(2e-1)-11=6+6e7(2e−1)−11=6+6e | | 5(x+4)-(2x-3)=2(1-2x) | | (2*x)+(x-4)=26 | | 3-3(x+1)=-(4x+1) | | x-(x*0.1)=110169.09 |