Question

m + 18 = 7

Explanation:

Step1: Isolate the variable m

To solve for \( m \), we need to subtract 18 from both sides of the equation \( m + 18 = 7 \). This is based on the subtraction property of equality, which states that if we subtract the same number from both sides of an equation, the equation remains true.

$$ m + 18 - 18 = 7 - 18 $$

Step2: Simplify both sides

Simplifying the left side, \( m + 18 - 18 \) simplifies to \( m \). Simplifying the right side, \( 7 - 18 = -11 \).

$$ m = -11 $$

Answer:

\( m = -11 \)