Question

alguien que me ayude con esto​

Answer 1

Respuesta:

x = 244

y = 33

Explicación paso a paso:

x - 8y + 20 = 0 ==> x = 8y - 20

5x - 7y + 1 = 0 ==> 5x + 1 = 7y ==> (5x + 1)/7 = y

5(8y - 20) - 7y + 1 = 0 ==> 40y - 100 - 7y + 1 = 0

33y - 99 = 0 ==> 33y = 99 ==> y = 99/33 ==> y = 33

x = 8(33) - 20 ==> x = 264 - 20 ==> x = 244