Question

Add the two expressions.
-4.2x + 3 and 2.5x – 6
=?

Answer 1

-1.7x-3

Explanation:

(-4.2x + 3) + (2.5x-6)

Add like terms

-4.2x+2.5x + 3-6

Answer: -1.7x-3

Answer 2

1.7x + (-3)

Explanation:

First, combine the two x values (-4.2 and 2.5) to get 1.7x. Then, combine 3 and -6 to get -3. The final answer is above.