Question

13+4a+2a=3a=1
i combined ed like terms and i got 13+9a=3a+1
whats next??

Answer 1

13 + 4a + 2a = 3a + 1 ---- is this your problem...is the symbol in front of the 1 supposed to be a plus sign ?

Answer 2

yes

Answer 3

if so, then...
13 + 4a + 2a = 3a + 1 -- combine like terms
13 + 6a = 3a + 1 -- subtract 3a from both sides
13 + 6a - 3a = 3a - 3a + 1 -- combine like terms
13 + 3a = 1 -- subtract 13 from both sides
13 - 13 + 3a = 1 - 13 -- combine like terms
3a = - 12 -- divide both sides by 3
3a/3 = -12/3
a = - 4

any questions ?

Answer 4

oh ok thank you

Answer 5

sure thing :)

Answer 6

how would you do this one -8n-4=-2+n-6-8n