Question

Solve the system of equations and choose the correct ordered pair. 

9x - 2y = 73
5x - 9y = 9

Answer 1

The answer is A (9,4)

Answer 2

A) 9x - 2y = 73
B) 5x - 9y = 9
Multiply equation A by -5/9
A) -5x +1.1111111111 y = -40.5555555556  then add it to B
B) 5x - 9y = 9
-7.888888888 y = -31.555555555
y = 4


B) 5x - 9*4 = 9

B) 5x -36 = 9
B) 5x = 45
x = 9