Solve each system by substitution.

1) - 3x + y=-13

3x + 4y = 8

x = 4 y = - 1

Step-by-step explanation:

if you multiply - 3 by 4 it equals - 12 then add - 1 to get - 13 for the first equation.

for the second equation you multiply 3 by 4 to get 12 and multiply 4 by - 1 to get - 4 then you add them together to get 8. start with a process of elimination by substituting each eqation with 0.