Question

y=5x-10÷2;4x+5= -y solve using Cramer rule​

Answer 1

Answer:

yx+y=-5

Step-by-step explanation:

y=(5x-10)/2

2y=5x-10

-5x+2y=-10

changing the sign,

5x-2y=10

now 4x+5=-y

therefore 4x+y=-5