Question

s=12 is the solution to which equation? a. 1/2 s 3=s-3. b. 2/3s-3=15-1/3s. c. 1 1/2 s -9=30 1 1/2sd. 2 1/2s 9=5-1/2s

Answer 1

1/2s + 3 = s - 3
s - 1/2s = 3 + 3
1/2s = 6
s = 6 x 2 = 12
s = 12