Question

I need help on those

Answer 1

1. 9w = 54
---- = ---
9 9

w = 6


2. b - 12 = 3
+ 12 + 12

b = 15


3. n/4 = -11
x4 x4

n = -44


For 4 - 7, just count and draw a dot on the number. The example is right above the questions