Answer:
7a + 7b
Step-by-step explanation:
We can rewrite the expression:
7(a + b)
using the distributive property, which states that:
a(b + c) = ab + ac.
Therefore:
7(a + b) = 7a + 7b
Further Note
We can show that this property works for constants (non-variables) as well:
3 × (2 + 1) = (3 × 2) + (3 × 1) = 6 + 3 = 9
3 × 3 = 9
