A student is trying to solve the system of two equations given below:

Equation P: y + z = 6
Equation Q: 3y + 4z = 1

Which of the following is a possible step used in eliminating the y-term?

A.(y + z = 6) ⋅ 4

B. (3y + 4z = 1) ⋅ 4
C. (y + z = 6) ⋅ −3

D.(3y + 4z = 1) ⋅ 3

Question

A student is trying to solve the system of two equations given below:

Equation P: y + z = 6
Equation Q: 3y + 4z = 1

Which of the following is a possible step used in eliminating the y-term?

 A.(y + z = 6) ⋅ 4

B. (3y + 4z = 1) ⋅ 4
C. (y + z = 6) ⋅ −3
 
D.(3y + 4z = 1) ⋅ 3

anonymous · Answer

What do you think the answer is?

anonymous · Answer

If you want to eliminate 3y, what would you multiply y by?

jdoe0001 · Answer

$\large {
\begin{array}{cllll}
{\color{brown}{ y}} + z = 6\
3y + 4z = 1
\\hline\
0  +\square =\square 
\end{array}
}$

so as 10115658  said
what would you need, to multiply "y", in order that its sum to "3y" below it
gives 0?

perl · Answer

what happens if you multiply the first equation by -3