Question

m+7=3+m+4 Solve for m

Answer 1

The given expression is,

$m+7=3+m+4$

Now, let us add 3 and 4,

$\begin{gathered} m+7=m+7 \\ \end{gathered}$

Bringing all the "m" together,

$\begin{gathered} m-m+7=7 \\ 7=7 \end{gathered}$

Since 7=7, the equation will always be true for any value of m. So the interval notation is,

$(-\infty,\infty)$