Question

Please help with this quick 8th grade math question it's due tomorrow please

will fan and medal!

In the system of equations, which variable would it be easiest to solve for?
2x+4y=26
3x+y=9
A. The easiest to solve for is x in the first equation.
B. The easiest to solve for is y in the first equation.
C. The easiest to solve for is x in the second equation.
D. The easiest to solve for is y in the second equation.

Answer 1

@phi @rebeccaxhawaii @freckles @zepdrix @MathMusician

Answer 2

Help me out here @zepdrix ?

Answer 3

It's usually easiest to solve for a variable when it `does not have a coefficient`, a number in front of it.

So ya... any ideas on the answer? :)

Answer 4

I honestly have no idea but when I solve, I usually solve for x first but it's asking for the easiest and I'm not sure what's the easiest way

Answer 5

I think it's b

Answer 6

Well I just gave you a big hint :O
There is only one variable present without a number attached to it.

Answer 7

I'm so confused 0=

Answer 8

really? :\

Answer 9

Yep.

Answer 10

In the first equation... the x has a 2 and the y has a 4.

Answer 11

ok..?

Answer 12

In the second equation... the x has a 3 and the y has no coefficient.

Answer 13

So d!

Answer 14

Yay good job

Answer 15

One more please? @zepdrix

Answer 16

Which is true regarding the system of equations?
6x+2y=46
3x+y=23
A. The system results in a false statement.
B. The system results in an intersection at one point.
C. The system results in parallel lines.
D. The system results in a true statement because they are the same line.

Answer 17

If we multiply both sides of the `second equation` by 2,
we will have this system,
6x+2y=46
6x+2y=46

Answer 18

If we combine these equations,
maybe subtracting the second equation from the first,
what are we left with?

Answer 19

? =(

Answer 20

All I know is that the equation has infinite solutions.

Answer 21

Ok well maybe read your options again.
When we were able to get to this point,
6x+2y=46
6x+2y=46

One of the options should jump out at you :)

Answer 22

No idea..

Answer 23

They are exactly the same, yes?

Answer 24

Yes.

Answer 25

Hmm, one of your options mentions that...

Answer 26

D?