Question

3. Solve. Check Your Solutions z - 12 = 30

Answer 1

Answer:

$z = 42$

Step-by-step explanation:

If we want to solve this algebraic equation, we need to isolate z on one side.

$z - 12 = 30$

Add 12 to both sides:

$z - 12+12 = 30+12\\\\z = 42$

To check our work, let's substitute 42 in as $z$.

$42 - 12 = 30$

42 minus 12 is indeed 30.

Hope this helped!

Answer 2

Answer:

z = 42

Step-by-step explanation:

z - 12 = 30

Add 12 to each side

z - 12+12 = 30+12

z = 42

Check

42 - 12 = 30

30 = 30