Question

ajudemm por favor??ksjdjdkd​

Answer 1

Resposta:

e) (10, 40)

Explicação passo-a-passo:

$\left \{ {{2x+y=60} \atop {x+6y=250 }(-2)\right. \\\left \{ {{2x+y=60} \atop {-2x-12y=-500}} \right. +\\-11y = -440\\y = \frac{-440}{-11} \\y = 40\\\\2x+y=60\\2x = 60 - 40\\2x = 20\\x = 10$