A student is trying to solve The system of two linear equations given below:
Equation P: Y + Z = 6
Equation Q: 8y+7z=1
Which of the following is a possible step used in eliminating the y-term?
Equation P: Y + Z = 6
Equation Q: 8y+7z=1
Which of the following is a possible step used in eliminating the y-term?