Question

What is the value of a in the following equation: 2a = -a + 9?

3

-6

-3

none of these

Answer 1

none of these

Answer 2

2a = -a + 9

add +a to both sides
what do you get ?

Answer 3

or u could just plug in the numbers and see if both sides equal each other....more easier..

Answer 4

That is what I did....

Answer 5

@Awesome781 :)

Answer 6

2a = -a + 9

add +a to both sides

2a+a = -a + a + 9

on the left side , what is 2 a's plus 1 more a?
on the right side what is 1 a take away 1 a leaving just the 9 ?