Question

X+5y=10
2x+2y=150
Qual o valor de X e Y

Answer 1

X+5y=10

2x+2y=150

x=10-5y

2x+2y=150

2.(10-5y)+2y=150

y=-65/4

x=10-5.(-65/4)

x=365/4

365/4 +5.(-65/4)=10

2.365/4 +2(-65/4)=150

SOLUÇÃO = (365/4, -65/4)