1. ## 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

2. 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

3. 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,

$13a+6$