The problem asks to find an expression that is equivalent to $7(j + 7)$.

1. Problem Description

The problem asks to find an expression that is equivalent to $7(j + 7)$.

2. Solution Steps

To find the equivalent expression, we need to apply the distributive property. The distributive property states that $a(b + c) = ab + ac$.

Applying the distributive property to $7(j + 7)$, we have:

$7(j + 7) = 7 \cdot j + 7 \cdot 7$

$7(j + 7) = 7j + 49$

3. Final Answer

The expression equivalent to $7(j + 7)$ is $7j + 49$.