Question

The solution to the system of equations x + y = 40 and x = 4y is:

(32, 8).

(29, 11).

(8, 32).

Answer 1

(32, 8)

Explanation:

Substitute 4y for x in x + y = 40 and solve for y. Then find x.

`4y + y = 40`

`5y = 40`

`y = 8`

`x = 4(8) = 32`