Answer:To solve for z in the equation 93 = 9z + 21, we can follow these steps:
Step 1: Subtract 21 from both sides of the equation:
93 - 21 = 9z + 21 - 21
Simplifying:
72 = 9z
Step 2: Divide both sides of the equation by 9:
(72) / 9 = (9z) / 9
Simplifying:
8 = z
Therefore, the solution for z in the equation 93 = 9z + 21 is z = 8.
In summary, to solve for z in the equation 93 = 9z + 21, we subtract 21 from both sides and then divide both sides by 9, which gives us the solution z = 8.
Step-by-step explanation:
