Question 328846
5r-8s=32
8r+5s=69
Multiply eq. 1 by 5 and eq. 2 by 8 and add them together to eliminate s,
{{{25r-40s+64r+40s=160+552}}}
{{{89r=712}}}
{{{r=8}}}
THen use either equation to solve for s.
{{{64+5s=69}}}
{{{5s=5}}}
{{{s=1}}}