Question

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

2x + 3y = 29
x = 4

A. (4, 7)
B. (4, 11)
C. (7, 4)
D. (3, 2)
could you maybe walk me through this just to make sure i got it @Zale101

Answer 1

you already have x=4, a variable is already given, s0 plug x as 4 to the equation to get y

Answer 2

plug it to the first equation, i think you can handle this xD Like you did in the first problem because this one is simply easier

Answer 3

A?
i got 7

Answer 4

how did you get 7?

Answer 5

2x4+3y=29

Answer 6

2(4)+3y=29
8+3y=29
3y=21
y=7

Answer 7

Ok! So then it would be (4,7)

Answer 8

Correct?