Question

1. 25 = 2c + 7

Explanation:

Step1: Subtract 7 from both sides

To isolate the term with \( c \), we subtract 7 from both sides of the equation \( 25 = 2c + 7 \). This gives us \( 25 - 7 = 2c + 7 - 7 \), which simplifies to \( 18 = 2c \).

Step2: Divide both sides by 2

To solve for \( c \), we divide both sides of the equation \( 18 = 2c \) by 2. So, \( \frac{18}{2} = \frac{2c}{2} \), which simplifies to \( 9 = c \).

Answer:

\( c = 9 \)