Question

Решите систему уравнений:$\left \{ {{2x-y=-1} \atop {}\frac{x}{6}+ \frac{y+1}{5} = 1} \right.$

Answer 1

2x - y = -1

x/6 + (y + 1)/5 = 1

2x - y = -1

5x + 6y + 6 = 30

2x - y = -1

5x + 6y = 24

2x - y = -1

17x = 18

x = 18/17

y = 2x + 1 = 53/17