A student is trying to solve the system of two equations given below: Equation P: y + z = 4 Equation Q: 3y + 7z = 15 Which of the following steps can be used to eliminate the y term? A. - 3 (y + z = 4) B. 3 (y + z = 4) C. - 1 (3y + 7z = 15) D. - 3 (3y + 7z = 15)

Question

Starr

30 June, 02:37

+3

Answers (1)

Know the Answer?

Gabriela · Answer 1

Look at them

P: 1y

Q: 3y

multiply first equation by - 3 becuase 3y-3y=0

-3P

-3 (y-z=4) is answer

A is answer