Mathematics
CandraGirad799
2021-04-08 03:00:51
A student is trying to solve the system of two equations given below: Equation P: x + y = 8 Equation Q: 2x + 5y = 24 Which of the following steps can be used to eliminate the x term? A. 2(x + y = 8) B. -2(x + y = 8) C. -1(2x + 5y = 24) D. -2(2x + 5y =24)
ANSWERS
Catheryn917
2021-04-08 04:53:58

A. 2(x + y = 8) Once you do that with Equation P, you can do the following: 2x + 2y = 16 (2x + 2y) - (2x + 5y) = 16 - 24 ( modified Equation P minus Equation Q ) 2x - 2x + 2y - 5y = 16 - 24 -3y = -8 Magic. x has been eliminated.

ADD ANSWER