I want to know if this equation is wrong?
\begin{align} 4(x - 3) + 2(x - 1) - 3 &< 10\\ 4x-12 + 2x-1-3 &< 10\\ 4x - 2x &< 10 + 12 + 1 + 3\\ 2x &< 26\\ x &< 26/2\\ x &< 13\\ \end{align}
if it is wrong, what is the problem? i tried to solve this equation, but i have doubts about the answer
Inequality, not equation. As for the math issues:
Second line: $2(x-1)$ becomes $2x-2$, not $2x-1$.
Third line: Should be $4x + 2x$, not $4x - 2x$.
There are other errors but they all stem from those two.