Which ordered pair (c, d) is a solution to the given system of linear equations?

-c+2b=13

-9c-4b=-15

(-1, 6)

(-1, 7)

(6, - 1)

(7, 10)

A) - c + 2b = 13

B) - 9c - 4b = - 15

Multiplying A) by 2

A) - 2c + 4b = 26 then adding this to B):

B) - 9c - 4b = - 15

-11c = 11

c = - 1

A) - - 1 + 2b = 13

A) 2b = 12

b = 6

In the ordered pair, if "c" goes first, then

(-1, 6)

If "c" goes last then

(6, - 1)