Question 43534
{{{2x + y = 8}}}
+
{{{2x - y = 0}}}
=
{{{2x + y + 2x - y = 8 + 0}}}
{{{4x = 8}}}
{{{x = 2}}}
PLUG:
{{{2x - y = 0}}}
{{{4 - y = 0}}}
{{{y = 4}}}
Answer: (2,4)
{{{ graph( 600, 600, -10, 10, -10, 10, -2x + 8, 2x ) }}}