simplifying

• February 2nd 2009, 08:36 AM
andyboy179
simplifying
i got 7a+4+5a+a+2 i need to simplify it and i think the answer is 18a but im not sure if any one can help it will be helpful thanks
• February 2nd 2009, 08:43 AM
running-gag
Quote:

Originally Posted by andyboy179
i got 7a+4+5a+a+2 i need to simplify it and i think the answer is 18a but im not sure if any one can help it will be helpful thanks

You need to group all the terms related to "a"
For instance 7a+5a = 12a
It's like 7 apples + 5 apples = 12 apples
• February 2nd 2009, 08:54 AM
GaloisTheory1
Quote:

Originally Posted by andyboy179
i got 7a+4+5a+a+2 i need to simplify it and i think the answer is 18a but im not sure if any one can help it will be helpful thanks

just combine like terms,

$13a+6$