What's wrong with these equations?
75387
A proof that $1=2$. May I know why it’s false?
55487
Can someone help what is incorrect in this program?
38270
What's wrong with my newcommand?
148415
Fourier package causes equation to not show up properly
139496
Linear systems. Please help me solve this
125999
When does a system of equations have no solution?
126338
limits problem-ordinary sencond order equation
35274
What is wrong with this substitution?
121330
Equation is not centered
141247
Several error in equation typing
92370
missing $ inserted error for equation
142401
Where's the problem in this equation? Resulting in $4 = 5$
87976
How to solve these series?
140352
How can I take a sensitive result for this equation?
150767
Whats wrong with this simple 'double' calculation?
31738
Python math is wrong
51890
simple calculation not working for some reason