Question

Use the substitution method to solve the system of equations. Choose the

correct ordered pair.
y = 4x - 2
y = x + 13
A. (1, 13)
B. (0, -2)
C. (5, 18)
D. (4,-2)

Answer 1

c

Explanation:

just plug each coordinates

5=x

18=y

if its tru for both then thats the answer

Answer 2

5,8

Explanation:

y=4x-2-----(i)

y=x+13----(ii)

Equating equation i and ii we get,

`4x - 2 = x + 13`

`4x - x = 13 + 2`

`3x = 15`

`x = 3`

`substitutin \: the \: value \: of \: x \: in \: equation \: (i)`

`y = 4x - 2`

`y = 4 * 5 - 2`

`y = 20 - 2`

`y = 18`

Marks this as a brainest answer ok.