Question

1. what is the value of z?

12 + z = 45

• 12 - 12

z = 33

does z = 33 make the equation true?
complete the equation to check the solution.
12 + z = 45
12 + 33 = 45
□ = 45 ?

Explanation:

Step1: Calculate 12 + 33

To check if \( z = 33 \) is a solution, we substitute \( z \) with 33 in the equation \( 12 + z = 45 \) and calculate the left - hand side. So we need to find the value of \( 12+33 \).
\( 12 + 33=45 \)

Answer:

45