{ 2x + 3y = 2
{ -2x + 5y = -18
3y + 5y = 2 - 18 2x + 3 · (-8) = 2
8y = -16 2x - 24 = 2
y = -16 ÷ 2 2x = 2 + 24
y = -8 2x = 26
x = 26 ÷ 2
x = 13
ответ: (13; -8)
{ 2x + 3y = 2
{ -2x + 5y = -18
3y + 5y = 2 - 18 2x + 3 · (-8) = 2
8y = -16 2x - 24 = 2
y = -16 ÷ 2 2x = 2 + 24
y = -8 2x = 26
x = 26 ÷ 2
x = 13
ответ: (13; -8)