Question

решите систему уравнений:
a){ 5x - 3y=14
{2x + y = 10

Answer 1

{5x-3y=14 => {5x-3y=14
{2x+y=10|×3 => {+6x+3y=30 => 11x=44
x=4
2) 5×4 - 3y=14
20-3y=14
-3y=14-20
y=2