Question

i need help i don't know how to do this

What is the value of a?

Answer 1

here is the problem

Answer 2

giving medal

Answer 3

wait thats the problem?

Answer 4

whats the value of a?

Answer 5

16 maybe im not sure

Answer 6

try using the distributive property on -2(a-8) first.

Answer 7

a = 5

Answer 8

hmmm thats the deal i dont under stand how this works im not the biggest on math

Answer 9

All the distributive property says is a(b+c)=ab+ac
take the factor on the outside and multiply on all terms by it on the inside the ( ).
so -2(a-8)=?

Answer 10

ok so multiply thes numbers

Answer 11

-16

Answer 12

-2(a-8)
multiply every term inside the ( ) by -2
so you have
-2*a-2(-8)
-2a+16

Answer 13

so rewrote your equation as:
-2a+16+6a=36

Answer 14

now combine like terms on the left hand side

Answer 15

so you ask yourself what is -2a+6a or 6a-2a (since these are the same value)?

Answer 16

ok so i got 20 when i added every thing except the letters

Answer 17

oh do you mean you did 36-16 which is 20?

Answer 18

bu the letters are 16 each

Answer 19

yes

Answer 20

a=5 for definate

Answer 21

ok so you still have
-2a+16+6a=36
-2a+6a=36-16
-2a+6a=20
or
6a-2a=20 if you reorder the left hand side

Answer 22

6-2=?

Answer 23

4

Answer 24

right so
6a-2a=(6-2)a=4a

Answer 25

\[4a=20\]

Answer 26

now you finally get to see how everyone is getting a=5

Answer 27

ohhh ok i get it thatnk you soo much