Question

solve the equation $12 + z = 45$. how can you find the value of $z$? $12 + z = 45$ dropdown dropdown on both sides.

Explanation:

Step1: Identify the operation

To isolate \( z \), we need to undo the addition of 12. The inverse operation of addition is subtraction. So we will subtract 12 from both sides.

Step2: Perform the operation

Starting with the equation \( 12 + z = 45 \), subtract 12 from both sides:
\( 12 + z - 12 = 45 - 12 \)
Simplifying both sides, the 12 and -12 on the left cancel out, leaving \( z = 33 \). But for the fill - in - the - blanks, the operation is to subtract 12.

Answer:

The first blank should be "Subtract" and the second blank should be "12".