Question

Solve this system using substitution:

f y = 5
16x – 4y = -20
solve this system using substitution

Answer 1

16x- 20y=20

Explanation:

20y-20y =0

so answer is 16x

Answer 2

Value of x=0

Explanation:

Given:

if
`y=5`

To find:

`16 x-4 y=-20`

Solve this system using substitution method and find the value of x

Solution:

The given equation:
`16 x-4 y=-20`

And if
`y=5`

Substitute the value of y=5 in the above equation, we get

`16 x-4(5)=-20`

`16 x-20=-20`

`16 x=-20+20`

`16 x=0`

`x=0`

Result:

Value of x=0 and (x, y)=(0,5)