lencho23 lencho23

03-10-2018
Mathematics

contestada

2x + 2y =6. 5x + 2y =4. Which of the following equations could be the result of multiplication and addiction to eliminate a variable in the system of equations?

A) 19x = 24
B) 19y = 22
C) 11y = 22

Respuesta :

alleyesonfaye alleyesonfaye

03-10-2018

C Is the correct answer

Answer Link

MollieToliver MollieToliver

03-10-2018

2x+2y=6

5x+2y =4

Multiply eq 1 by 5 and equation 2 by -2

10x+10y = 30

-10x - 4y = -8

Now adding we get

6y = 22

Divide by 2

3Y =11

Answer Link

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