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

Equation A: x + z = 6
Equation B: 2x + 4z = 1

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


Multiply equation B by 4.
Multiply equation A by 2.
Multiply equation A by –4.
Multiply equation B by 2.

Respuesta :

caylus
Hello,
Multiply equation A by –4.
=>-4x-4z=-24
     2x+4z=1
------------------
-2x=-23
x=23/2

Answer:

To eliminate the z-term, you need to multiply equation A by -4.

Step-by-step explanation:

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