Question 324645
1.{{{4x-y-4 = 0}}}
2.{{{7y = 29 + 9x}}}
From eq. 1,
{{{4x-y-4=0}}}
{{{y=4x-4}}}
Substitute into eq. 2,
{{{7(4x-4)=29+9x}}}
{{{28x-28=29+9x}}}
{{{19x=57}}}
{{{highlight(x=3)}}}
Then,
{{{y=4(3)-4}}}
{{{y=12-4}}}
{{{highlight(y=8)}}}