Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2 x + 3 y = 25. Negative 3 x + 4 y = 22.

1. The first equation can be multiplied by - 3 and the second equation by 2.

2. The first equation can be multiplied by - 4 and the second equation by 2.

3. The first equation can be multiplied by 3 and the second equation by 2.

4. The first equation can be multiplied by 4 and the second equation by - 3.

Question

Leo Estes

Mathematics

25 December, 22:17

Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2 x + 3 y = 25. Negative 3 x + 4 y = 22.

1. The first equation can be multiplied by - 3 and the second equation by 2.

2. The first equation can be multiplied by - 4 and the second equation by 2.

3. The first equation can be multiplied by 3 and the second equation by 2.

4. The first equation can be multiplied by 4 and the second equation by - 3.

+5

Answers (1)

Know the Answer?

Gustavo Combs · Answer 1

3. The first equation can be multiplied by 3 and the second equation by 2.

Step-by-step explanation:

2 x + 3 y = 25 (1)

-3 x + 4 y = 22 (2)

Multiply equation (1) by 3 and (2) by 2.

3 (2x) = 6x

2 (-3x) = - 6x

When you add the two equations, x will get cancelled last