Question

Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
8x - y = 31
5x + 3y = 23

Answer 1

use the first equation to get y in terms of x. in other words, get y by itself and then substitute it in the second equation.

Answer 2

need help

Answer 3

8x-y=31 ------> y = 8x-31
substitute that in the second equation and post what you get.

Answer 4

A(4,1)

Answer 5

8x-y=31 -- (*3)--> 24x-3y=93
(+) 5x +3y=23 (1)
29x=116 => x=4
(1)--x=4---> 5*4+3y=23 => 3y=23-20=> y=1

(4,1)