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Solve the system of equations and choose the correct ordered pair.3x – 4y = 262x + 8y = –36 A. (2,...
5 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)