Question

ax=b-3a (solve for a)

Answer 1

Any ideas?

Answer 2

i think i should move ax and 3a to one side of the equal sign and b on the other, but i'm lost after that

Answer 3

You are exactly right :)

Answer 4

so now what should i do?

Answer 5

use your old friend the distributive property

Answer 6

take out a -a?

Answer 7

yep

Answer 8

so now i have -b=-a(3+x)

Answer 9

should i just divide out -(3+x)?

Answer 10

yep

Answer 11

so, the answer is b/3+x=a. right?

Answer 12

correct, except you need to mention the restriction on x

Answer 13

what restriction?

Answer 14

oh, put it in parenthesis?

Answer 15

yes that too, but x can not equal to -3, right?

Answer 16

yes, then the denominator would be 0, undefined, so i just put (x cannot equal -3) the equal sign with a slash through it

Answer 17

yep

Answer 18

thank you!

Answer 19

thanks for trying to learn something new :)