How do u solve x-y=36x+4y=13
x - y = 36x + 4y = 13x = y + 36(y + 3) + 4y = 136y + 18 + 4y = 1310y = 13 - 1810y = - 5y = - 5/10y = - 1/2x = - 1/2 + 3x = - 1/2 + 6/2x = 5/2
\(\left \{ {{x-y=3\ \ \ |\cdot4} \atop {6x+4y=13}} \right. \\\\ \left \{ {{4x-4y=12} \atop {6x+4y=13}} \right. \\+-----\\\\10x=25\ \ \ |:10\\x=2.5\\\\2.5-y=3\\2.5-3=y\\y=-0.5\\\\ \left \{ {{y=-0.5} \atop {x=2.5}} \right.\)
