n in (-oo:+oo)
(1/2)*n-3 = 6 // - 6
(1/2)*n-6-3 = 0
1/2*n-9 = 0 // + 9
1/2*n = 9 // : 1/2
n = 9/1/2
n = 18
Answer:
n = 6
Step-by-step explanation:
1/2 n+3=6
Subtract 3 from both sides
1/2 n = 3
Multiply both sides by 2
