Answer:
Explanation:
Now we have to,
→ simplify the given expression.
The expression is,
→ (4 + 15.6a) - (7 + 3.7a)
Let's simplify the expression,
→ (4 + 15.6a) - (7 + 3.7a)
→ 4 + 15.6a - 7 - 3.7a
→ (15.6a - 3.7a) + (4 - 7)
→ (11.9a) + (-3)
→ 11.9a - 3
Hence, the answer is 11.9a - 3.