Question

x-2y-1=0

x+y+5=0

método de sustitución​

Answer 1

Explicación paso a paso:

■ x - 2y - 1 = 0

x = 2y + 1

■ x + y + 5 = 0

2y + 1 + y + 5 = 0

3y + 6 = 0

3y = - 6

y = - 2

halar X :

X = 2y + 1

X = 2(-2) + 1

X = - 4 + 1

X = - 3