waecmaths question:
Simplify: $3x-(p-x)-(r-p).$
Option A:
$2x-r$
Option B:
$2x+r$
Option C:
$4x-r$
Option D:
$2x-2p-r$
waecmaths solution:
$\begin{align} & 3x-(p-x)-(r-p)=3x-p+x-r+p \\ & 3x-(p-x)-(r-p)=4x-r \\\end{align}$
maths year:
maths topics: