Question

Решете системата
|4x+3y=15
|7x-5y=16

Answer 1

$left { {{4x+3y=15} atop {7x-5y=16}} right.$
$left { {{20x+15y=75} atop {21x-15y=48}} right.$
20x+15y+21x-15y=75+48
41x=123
x=3
y=1