{5x - 2y - 5 = 0
{1-3х + 2y + 15 = 0
{(5x - 2y - 5 = 0 ) *3
{(3х + 2y + 14 = 0 )*5
{15х-6у=15
{15х+10у=-70
15х-6у=15 - 15х+10у=-70
4у=-55
у= -13,75
{5x - 2y - 5 = 0
{1-3х + 2y + 15 = 0
{(5x - 2y - 5 = 0 ) *3
{(3х + 2y + 14 = 0 )*5
{15х-6у=15
{15х+10у=-70
15х-6у=15 - 15х+10у=-70
4у=-55
у= -13,75