Question

Using the given parallelogram, solve for
x and y.
ignore all pencil and blue pen!

Answer 1

`x+y=2\implies y=2-x \\\\[-0.35em] ~\dotfill\\\\ 2x-y=7\implies \stackrel{\textit{substituting from above}}{2x-(2-x)=7}\implies 2x-2+x=7\implies 3x-2=7 \\\\\\ 3x=9\implies x=\cfrac{9}{3}\implies \boxed{x=3}\hspace{5em}\stackrel{ 2~~ - ~~(3) }{\boxed{y=-1}}`