Question

Solve using substitution. Help e.e
y=3x
5x + 2y=44

Answer 1

@snowflake0531

Answer 2

@AZ

Answer 3

@boredfr

Answer 4

With
\[y=3x \] \[5x+2y=44\]

Answer 5

Okay, so, we already have what y equals, y=3x
Can you substitute the y value into the second equation?

Answer 6

So like: \[5x+2(3x)=44 ?\]

Answer 7

Yep!
So now solve for x

Answer 8

Um, I can't do 2 x 3x because they're not like terms, correct?

Answer 9

Or do I?

Answer 10

Well, since we're multiplying we can
Have you learned how to multiply variables yet?

Answer 11

Oh, we can? Sorry, I must've forgotten e.e

Answer 12

So, what is 2(3x)

Answer 13

6x..

Answer 14

Yep
and finish the equation, solve for x

Answer 15

Ohh so
5x + 6x = 44

11x = 44

then I divide them both right?

Answer 16

Yes, you divide both sides by 11

Answer 17

I got x = 4

Answer 18

Yep, x=4
And now with x, we can find y from either equation
In this case, put it into the first one since it'll be easier xd

Answer 19

Oh so 12?

Answer 20

Yep
So x=4, y=12

Answer 21

Thank youu!!!

Answer 22

yw~

Answer 23

Can you help with another one tho... e.e

Answer 24

I'll post it- ;-;

Answer 25

kk