Solve the system of equations using multiplication.
3x – 3y = –3
5x – y = –13
what is the solution of the system?

a. (3,2)
b. (–3,–2)
c. +(2,3)
d. (–2,–3)

B. (-3, -2)

Step-by-step explanation:

Multiply the first equation by -1/3 and add the result to the second equation.

-1/3(3x -3y) +(5x -y) = -1/3(-3) +-13

4x = -12 . . . . simplify

x = -3 . . . . . . divide by 4

Substituting this into -1/3 times the first equation, we get ...

-(-3) +y = 1

y = -2 . . . . . . . subtract 3

The solution is (x, y) = (-3, -2).