Answer:
15
Explanation:
do 25-10=15
c=15. 11 is x = 35
Start by subtracting 10 from 25
25-10 = 15
Check:
10 + 15 = 25
Therefore, the answer is c = 15
20 + 15 is 35
Check with 35 - 15 = 20
Therefore, x = 35 is the answer
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