Question

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

16x - 2y = 74
2x - 2y = 4

A. (6, 3)
B. (5, 0)
C. (6, 0)
D. (5, 3

Answer 1

solve for either y or x using either eqns

Answer 2

have you tried doing what Godlovesme mentioned? :)

Answer 3

@Tallan

Answer 4

bout to right now

Answer 5

Ok ^_^

Answer 6

Step 1: Pick either one of the equation and solve for y

Answer 7

y=8?

Answer 8

how did u get that?

Answer 9

Tallan, show step and mentioned what equation you used and the process of solving for y

Answer 10

i plugged it into a calculator honestly. and it gave me 8 while using 16x-2y=74 @Zale101

Answer 11

1) 16x - 2y = 74
2) 2x - 2y = 4
Rearrange both equations to isolate (-2y) then set these equal to each other:
74 - 16x = 4 - 2x
70 = 14x
x = 5
Substitute into Eq(2):
2(5) - 2y = 4
10 - 2y = 4
6 = 2y
y = 3
Check using Eq(1):
16(5) - 2(3) = 74
80 - 6 = 74
Answer (5,3)

Answer 12

is that right on how to find it?

Answer 13

So you solved y for 2x - 2y = 4?
\(\large 2x - 2y = 4\)
rearrange the terms to isolate y, by subtracting both sides by 2x
\(\large 2x \color{red}{-2x} - 2y = 4-\color{red}{2x}\)
\(\large -2y=4-2x\)
divide everything by -2
\(\large y=x-2\)
How did you get y=8?

Answer 14

i honestly don't know how i got 8

Answer 15

i think i got confused on it.

Answer 16

I'm just confused, because i didn't know if you got y=8 by solving or plugging at the end ..

Answer 17

Ok, but you know how to do the substitution method? :)

Answer 18

You seem your're getting everything

Answer 19

i think so. An if i have anymore trouble I will let you know.

Answer 20

is that the right answer?

Answer 21

Yes

Answer 22

nice job guys @Zale101 & @Tallan

Answer 23

:)

Answer 24

Thanks :)

Answer 25

Thanks :D :D

Answer 26

np :D

Answer 27

yw Tallan

Answer 28

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)

Answer 29

could you maybe walk me through this just to make sure i got it @Zale101