Question 483931
{{{system(6x+8y=22, -5x+y=20)}}}
from the second equation {{{y=5x+20}}} substitute into the first equation
{{{6x+8(5x+20)=22}}}
{{{6x+40x+160=22}}}
{{{46x=22-160}}}
{{{46x=-138}}}
{{{x=-138/46}}}
{{{x=-3}}}
{{{y=5*(-3)+20=5}}}
Answer (-3,5)