Question

2x+ y = 60
x+6y= 250


me ajuda por favor​

Answer 1

Resposta:

2x+ y = 60

x+6y= 250

$y = 60 - 2x \\ \\ x + 6 \times (60 - 2x) = 250 \\ x + 360 - 12x = 250 \\ - 11x + 360 - 250 = 0 \\ - 11x + 110 = 0 \\ - 11x = - 110 \times ( - 1) \\ 11x = 110 \div (11) \\ x = 10 \\ \\ y = 60 - 2x \\ y = 60 - 2 \times 11 \\ y = 60 - 22 \\ y = 38 \\ \\ (x.y) = (10.38)$