Question

Calculo 3×+y=5 2×-y=4

Answer 1

3x+y=5
y=5-3x

2x-y=4
2x-(5 -3x)=4
2x -5+3x=4
5x=4+5
x=9/5

y=5-3x
y=5-3.9/5
y=5-27/5
y=(25-27)/5
y= -2/5