5x + 4y = -1
-7x - 2y = -13

x = 3

y = -4

Step-by-step explanation:

multiply the second equation by 2 to get:  -14x - 4y = -26

                                                       now add  5x + 4y = -1

-9x = -27

x = 3

solve for 'y':

5(3) + 4y = -1

15 + 4y = -1

4y = -16

y = -4

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25