3. Find a solution to the following system of equations.

-3x+3y=-9

-3x+y=7

A. (–2, 2)

B. (–5, –8)

C. (5, 2)

D. (0, 7)

B. (–5, –8)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( − 5 , − 8 )

Equation Form:

x = − 5 , y = − 8

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150