Question

1x+4y=300
2x+6y=570
Resuelvanlo método de sustitución

Answer 1

x + 4y = 300

x = 300 - 4y

2 * ( 300 - 4y ) + 6y = 570

600 - 8y + 6y = 570

30 = 2y

15 = y

x + 4 * (15) = 300

x = 300 - 60

x = 240