Question

PLEASE HELP ME



Solve this system of equations using any method.
3x - y = 4
x + 2y = 13

A. (-1, 7)
B. (4, 8)
C. (5, 11)
D. (3, 5)

Answer 1

by any method

make any one coefficient same of both the equations
example
by multiplying eqn 1 by 2

Answer 2

i got B

Answer 3

no thats wrong

Answer 4

D

Answer 5

\(\large\tt \begin{align} \color{black}{
3x-y=4\hspace{.33em}\\~\\~\\
\implies 6x-2y=8\hspace{.33em}\\~\\
x + 2y = 13\hspace{.33em}\\~\\

}\end{align}\)

Answer 6

add the last two equations

Answer 7

D?

Answer 8

yes thats correct

Answer 9

Now you are right

Answer 10

thanks