Question

3x - 2y = 10
5x + y = 4
When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?

Answer 1

Can you elaborate? Or perhaps include the original question(s)?

Answer 2

this is the original question :/ do you awnt to see the answer choices?

Answer 3

Is this from a textbook? Or a review sheet?

Answer 4

an online thing

Answer 5

Can you show me the answer choices? I've got an answer or two, but they seem funky.

Answer 6

yep! one second

Answer 7

A)
13x = 18
B)
-7x = 2
C)
-7y = 62
D)
8x - y = 14

Answer 8

Ok. I got "A."

Answer 9

Let me show you my steps

Answer 10

sweet. thank you so much!

Answer 11

all right.

Answer 12

\[1.) (3x-2y=10) x 1 --> I multiplied by 1, to leave the equation the same
(5x+y=4) x 2 --> I multiplied by 2 in order to make the "y" a "-2y"

Answer 13

You now have: 3x-2y=10
10x+2y=4 --> Distributed the 2 into the whole equation. (notice the "-2" mentioned in the above step.

Answer 14

2.) Add the two equations.
(3x) + (10x) = 13x
(2y) + (-2y) = 0 (This is why we multiplied by 2.)
(8)+(10)= 18

You'll end up with:
13x=18

Hope this helped! :D

Answer 15

yeah it helped a bunch! thanks a lot