Question

3.9y + 3 - 2.9y=

anybody know?!

Answer 1

= y + 3

Explanation:

Group:

= 3.9y - 2.9y + 3

Add elements together:

= y + 3

Answer 2

3.9y + 3 - 2.9y

Arrange equation so that like terms are next to each other

3.9y - 2.9y + 3

Subtract.

1y + 3

Since 1y and 3 are not like terms, we cannot add them.

Therefore, 1y + 3 is the answer.
You can also write y +3.