Question

{ 2 X - 5 y = 2
{ 3 X + 5 y = 28

Answer 1

corta o -5y e +5y.

2x+3x= 2+28
5x= 30
x= 30/5
x= 6.

2x-5y= 2
2×(6)-5y= 2
12-5y= 2
12-2= 5y
10= 5y
10/5= y
2= y