Question

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? (5 points)



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

Answer 1

@Godlovesme

Answer 2

so do u have any ideas?

Answer 3

multiply by 2 but im not sure

Answer 4

hold on lemme check

Answer 5

mmk

Answer 6

so first thing we have to ensure is that the numbers or variables that we are trying to eliminate should have the same coefficient but different sign

Answer 7

lemme know if it's confusing :P