Question

Solve by the linear combination method (with or without multiplication).

2x + 3y = 11
–4x + 2y = 2


A.
(1, 3)

B.
(2, 3)

C.
(1, 2)

D.
(1, –2)

Answer 1

I think it is A, Right?

Answer 2

2x + 3y = 11 2( 2x + 3y = 11) 4x + 6y = 22
–4x + 2y = 2 -4x + 2y = 2
8y = 24
y = 3

Answer 3

yes

Answer 4

ok thank you can you answer another one for me?

Answer 5

sure

Answer 6

Solve by the linear combination method (with or without multiplication).

x + y = 40
0.08x + 0.03y = 1.7


A.
(40, 60)

B.

(20, 20)


C.
(10, 30)

D.
(20, –50)

Answer 7

What do you think it is?

Answer 8

B.

Answer 9

y = 40-x
0.08x + 0.03 (40-x) = 1.7 solve this...it's not B

Answer 10

C.

Answer 11

I got C.

Answer 12

0.08x + 1.2 - 0.3x = 1.7
0.05x = 1.5
x = 10 yes...C

Answer 13

ok one more...please?

Answer 14

ok

Answer 15

Solve by the linear combination method (with or without multiplication).

3x – 4y = 37
5x + 2y = 1

A.
(9, 4)

B.
(3, 7)

C.
(–3, –7)

D.
(3, –7)

Answer 16

Show me what you're trying

Answer 17

I got D.

Answer 18

Me, too. Good

Answer 19

thanks again!