MATH SOLVE

2 months ago

Q:
# Solve the system of equations and choose the correct ordered pair.3x – 4y = 262x + 8y = –36 A. (2, 5) B. (2, –5) C. (6, –2) D. (6, 2)

Accepted Solution

A:

3x – 4y = 26 ------(1)

2x + 8y = –36 ------(2)

2*(1); 6X - 8Y = 52 -----(3)

(2)+(3); 8X = 16

then X= 2

from (1) when x= 2; 3(2) - 4y = 26

6 - 4y = 26

- 4y = 20

then y = -5

so the answer is B (2, -5)

2x + 8y = –36 ------(2)

2*(1); 6X - 8Y = 52 -----(3)

(2)+(3); 8X = 16

then X= 2

from (1) when x= 2; 3(2) - 4y = 26

6 - 4y = 26

- 4y = 20

then y = -5

so the answer is B (2, -5)