How to solve this equation?

Son needs help solving 3a+6-3a+4. He wants to see it worked out step by step. he has worked on it for an hour and cannot solve it. Please help him.

?2013-05-06T16:46:52Z

Favorite Answer

you arrange it in order of like terms (terms [separated by the plus or minus signs] that have the same variables attached)

3a + 6 - 3a + 4
= 3a - 3a + 6 + 4

anything minus itself is zero

= 3a - 3a + 6 + 4
= 0 + 6 + 4
= 6 + 4
= 10

Dominique2013-05-06T16:46:04Z

Combine like terms:
3a&-3a =0
6&4=10
0+10=10