What is the solution of the system of equations? y = - 5x + 6 y = - 3x - 4

A. (-1, - 1)

B. (5, - 19)

C. (-1.25, 12.25)

D. (-19, 5)

The answer is B. (5,-19) because x=5 and y = - 19

so - 5 (5) + 6=-19

and - 3 (5) - 4=-19

To find this use substitution. substitute - 3x-4 in for Y

now you have

-5x + 6 = - 3x - 4 add 5x and 4 to both sides

10 = 2x divide by two on both sides

x=5

If you place 5 in where x is, you will get y = - 19

The answer is B