Question

find the value of λ , if x = -λ and y=5/2 is a solution of the equation x+4y-7=0 full explanation pls 50 pts

Answer 1

Answer:

3

Step-by-step explanation:

step 1: arrange equation having only x in one side.

x+4y-7=0

x+4y=7

x=7-4y

step 2: put the give value of y=5/2

x= 7-4*(5/2)

x= 7-2*5

x= 7-10

x= -3

step 3: solve equation x= -λ for λ and put value of x.

x= -λ

λ= -x

λ= -(-3)

λ= 3