Question

×=4y
×+6y=10

Método substituição

Answer 1

Resposta:

4y+6y=10

10y=10

y= 10/10

y=1

•x=4×1

x=4

S={(4,1)}

Answer 2

X = 4y

X +6y = 10

4y +6y = 10

10y =10

Y = 10 ÷ 10

Y = 1

X = 4y

X = 4x1

X = 4

S = (4,1)