Question

2x + 3y = 6
5x + 2y = 4

Which of the following equations could be the result of multiplication and addition to eliminate a variable in the system of equations?


19x = 24
19y = 22
11y = 22

Answer 1

\(\large\color{black}{ \displaystyle 2x+3y=6 }\)
\(\large\color{black}{ \displaystyle 5x + 2y = 4 }\)


\(\large\color{black}{ \displaystyle \color{red}{(}2x+3y=6 \color{red}{)\times5} }\)
\(\large\color{black}{ \displaystyle \color{red}{(}5x + 2y = 4\color{red}{)\times(-2)} }\)


\(\large\color{black}{ \displaystyle 10x+15y=30 }\)
\(\large\color{black}{ \displaystyle -10x - 4y = -8 }\)


now add the equations.

Answer 2

Add the equations together or work each out?

Answer 3

add the equations together

Answer 4

(the X is eliminated after the addition)

Answer 5

11y = 22

Answer 6

(( yes, so your answer is ? ))

Answer 7

lol

Answer 8

y = 2
Thank you!!!