Create an equivalent system of equations using the sum of the system and the first equation.
−5x + 4y = 8
4x + y = 2
a) −5x + 4y = 8
9x + 5y = 10
b) −5x + 4y = 8
−x + 5y = 10
c) −5x + 4y = 8
9x + 5y = 2
d) −5x + 4y = 8
−x + y = 10

B) {-5x + 4y = 8

{-x + 5y = 10

Step-by-step explanation:

Add like it said, and you will see your answer.

Option B

Step-by-step explanation:

We are given that

System of equations

We have to find an equivalent system of equations using sum of system and first equations

Sum of system of equations

Therefore, option B is true.

the answer is  

c.

90.0π cm^2

hope you got it.

the answer is a

step-by-step explanation: