Question

four system of equation help?

Answer 1

x = y - 3
x + 3y = 13
What is the solution to the system of equations?
A) (1, 4)
B) (4, 1)
C) (7, 4)
D) (2.5, 5.5)

Answer 2

@EclipsedStar

Answer 3

Let's start with A. x = y - 3
x + 3y = 13
A = (1,4) where x= 1 and y = 4
(1)=(4)-3
(1)+3(4)=13
Can you check if this is true?

Answer 4

ok hold on

Answer 5

10?

Answer 6

No, that's not what the question is asking. Let me rephrase.
In the first part, x = y - 3, we plugged in 1 for x and 4 for y.
\[(1) = (4)-3\]
So, is 1 the solution for 4 - 3?

Answer 7

OH

Answer 8

It seems that you are understanding. So, for the next part: \[x + 3y = 13\]
Try plugging in 1 for x and 4 for y.

Answer 9

ok so 1+34 =13

Answer 10

Not exactly. Let me help you with that.
\[(1) + 3(4) = 13\]
What is 3*4?

Answer 11

12

Answer 12

Okay. \[1 + 12 = 13\]
This is true, correct?

Answer 13

yes

Answer 14

So, do you have your answer?

Answer 15

yes a

Answer 16

Precisely. =)

Answer 17

if i do some more could you check it?

Answer 18

I'll try but you'll have to fabricate a new question thread

Answer 19

ok one sec