Question

distinguishing between two types of situations
isaac spends $81 on books and journals for his 3 cousins. for each of his 3 cousins, he buys a book that costs x dollars and a journal that costs $14.
find a solution to the equation.

81
three rectangles labeled x + 14 each, with a total length of 81
3(x + 14) = 81
x = \boxed{}

Explanation:

Step1: Divide both sides by 3

To isolate the term with \( x \), we divide both sides of the equation \( 3(x + 14)=81 \) by 3.

$$ \frac{3(x + 14)}{3}=\frac{81}{3} $$

Simplifying both sides, we get \( x + 14 = 27 \).

Step2: Subtract 14 from both sides

To solve for \( x \), we subtract 14 from both sides of the equation \( x + 14 = 27 \).

$$ x + 14 - 14 = 27 - 14 $$

Simplifying both sides, we find that \( x = 13 \).

Answer:

\( x = 13 \)