Answer :
K/2+9=30 1. Start by getting rid of the number farthest from K
-9 -9 2. The nines cancel out, 30-9=21
K/2 = 21 3. Next, get the 2 away from K
/-2 /-2 4. The 2 cancel out when divided, 21 divided by -2= -10.5
K = -10.5
K=-10.5
-9 -9 2. The nines cancel out, 30-9=21
K/2 = 21 3. Next, get the 2 away from K
/-2 /-2 4. The 2 cancel out when divided, 21 divided by -2= -10.5
K = -10.5
K=-10.5