Answer:
7 goes into the box since 14b - 14b = 0 and we are then left with 7r.
14b - 14b + 7r = 7r
Explanation:
Given expression,
→ 14b - 14b + 7r
Let's solve the expression,
→ (14b - 14b) + 7r
→ 0 + 7r = 7r
Hence, the answer is 7r.
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