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?

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

Answer 1

@KendrickLamar2014

Answer 2

@BoraSemiz

Answer 3

@omarbirjas

Answer 4

@AriPotta

Answer 5

@563blackghost

Answer 6

@BoraSemiz

Answer 7

@welshfella

Answer 8

@Famous5

Answer 9

@Michele_Laino

Answer 10

Do you know what eliminating is?

Answer 11

there is z and there is 4z

Answer 12

it would be easier to get rid of 4z since math works like that.

Answer 13

whats the opposite of 4z?

Answer 14

-4?

Answer 15

or 4?

Answer 16

the opposite, what would you need to add to 4z to make it 0

Answer 17

lets try 4

Answer 18

subtract 4

Answer 19

noooo close tho

Answer 20

you need to subtract 4z

Answer 21

so the anser is 4?

Answer 22

dont forget the variable.

Answer 23

okay

Answer 24

you need to multiply the top equation by a certain number so you can get -4z to cancel out 4z which is obviously -4

Answer 25

so its c

Answer 26

ok thanks i have another question @omarbirjas

Answer 27

new question box pls