11 +5 = 4y

16 = 4y

16/4 = y

y =4

Check by substituting:

11 = 4(4)-5

11 = 16-5

11=11 CORRECT

2)-3/4k = 15

-3/4k * -4/3 = 15 *-4/3

k = -60/3

k = -20

-3/4 * (-20) = 15

60/4 = 15

15=15 CORRECT

the rest of them can be done in this same exact fashion, i showed you both the multiplication/division and addition/subtraction, try 3-8 on your own using these as examples

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