Question

Please help! EASY Algebra

Use Linear combination method for the following questions.

1. 3x + y = 4
2x + y = 4

A. -3, 12
B. -1, 7
C. 0, 4
D. -3, 13

2. 3x + 2y = -7
5x - 4y = -19

A. no solution
B. -3,1
C. infinitive number of solutions
D. -4, 2

Determine how many solutions each equation has.

1. 3x - 9y = 0
-x + 3y = -4

A. 1
B. 2
C. infinitive
D. none

2. 6x - 9y = -9
2x - 3y = -6

Solve.

1. 2x - y = 5
3y + 27 = 4

A. -1, -7
B. 2, -1
C.0, -2
D.5,5

2. x + y = 3
2x + 2y = 6

A. 1.5, 1.5
B.none
C.infinitive
D.0,3

Answer 1

3x + 2y = -7
5x - 4y = -19

A. none
B. -3, 1
C. infinitive
D. -4, 2

Answer 2

just graph it.

Answer 3

Go to Math On demand

Answer 4

I figured out the first two...
1. c
2. b

Answer 5

Ok so far so good

Can you do the steps to #3 show me what u know

Answer 6

ok just a sec

Answer 7

3x - 9y = 0
-x + 3y = -4