## algebra 50 (misc)
### Solution
We have to solve several equations in this challenge, all equations are one-dimensional about `X`, I simply transform the equation from the form `f = b` to `f - b` and solve it with SymPy.
```python#!/usr/bin/env python3from pwn import *from sympy import Symbol, solver = remote("misc.chal.csaw.io", 9002)
r.recvuntil("*\n")while True:    eq = r.recvline().strip().decode()    if eq.startswith("flag"):        print(eq)        break    X = Symbol("X")    eq = "solve(" + eq.replace("=", "-") + ")"    print(eq)    try:        sol = float(eval(eq)[0])        print("X =", sol)    except IndexError:        r.sendline("0")    else:        r.sendline(str(sol))    r.recvuntil("going\n")```
### Flag
```flag{y0u_s0_60od_aT_tH3_qU1cK_M4tH5}```