Question

solve $3x + k = c$ for $x$. \
\
\bigcirc a. $x = 3(c + k)$ \
\
\bigcirc b. $x = \frac{c - k}{3}$ \
\
\bigcirc c. $x = \frac{c + k}{3}$ \
\
\bigcirc d. $x = 3(c - k)$

Explanation:

Step1: Isolate the term with x

Subtract \( k \) from both sides of the equation \( 3x + k = c \) to get \( 3x = c - k \).

Step2: Solve for x

Divide both sides of the equation \( 3x = c - k \) by 3 to get \( x=\frac{c - k}{3} \).

Answer:

B. \( x = \frac{c - k}{3} \)