Question

Subtract the expressions.

(6.38n − 3.4) − (5 + 12.6n)

18.98n + (−8.4)
9.78n − 7.6
−6.22n − 8.4
−62.20n − 7.6

Answer 1

To subtract the given expressions, change the signs of the terms in the second expression and combine like terms. The correct answer is − 6.22n − 8.4.

Step-by-step explanation:

To subtract the expressions, each term in the second expression must have its sign changed before the subtraction is performed. Here's the step-by-step process:

1. Original expression: (6.38n − 3.4) − (5 + 12.6n)
2. Change the signs of the second expression's terms and rewrite: (6.38n − 3.4) + (-5 - 12.6n)
3. Combine like terms: (6.38n - 12.6n) + (-3.4 - 5)
4. Simplify the expression: -6.22n - 8.4

The correct answer is − 6.22n − 8.4.