Z/2 + 1 = 9 what is z equal too? need asap and tell me how you did it as well.

Solve for z:

z/2 + 1 = 9

Put each term in z/2 + 1 over the common denominator 2: z/2 + 1 = z/2 + 2/2:

z/2 + 2/2 = 9

z/2 + 2/2 = (z + 2) / 2:

(z + 2) / 2 = 9

Multiply both sides of (z + 2) / 2 = 9 by 2:

(2 (z + 2)) / 2 = 2*9

(2 (z + 2)) / 2 = 2/2 * (z + 2) = z + 2:

z + 2 = 2*9

2*9 = 18:

z + 2 = 18

Subtract 2 from both sides:

z + (2 - 2) = 18 - 2

2 - 2 = 0:

z = 18 - 2

18 - 2 = 16:

Answer: z = 16