Question

2x + y = 11 Ec(1) x = y − 2 Ec(2)

Answer 1

Explicación paso a paso:

ec 1.

2x+y=11

2×=11-y

$x = \frac{11 - y}{2}$

$x = 5.5 - y$

ec 2.

x=y-2

(5,5-y)=y-2

(5,5-y)-y=-2

5,5-2y=-2

-2y=-2-5,5

-2y=-7,5

2y=7,5

$y = \frac{7.5}{2}$

y=3.75