Answer:

Explanation:
Given expression,
→ 10a - 3 - 5c - 2c
Now we have to use,
→ a = 3
→ c = 2
Let's solve the expression,
→ 10a - 3 - 5c - 2c
→ 10(3) - 3 - 5(2) - 2(2)
→ 30 - 3 - 10 - 4
→ 30 - 3 - 14
→ 30 - 17
→ 13 => final value
Therefore, the answer is 13.