Question

Help Math trouble plz asap win medal
Emilia simplified the equation a-3/2=1/6(3a-9) as shown. What do you obsereve? What does this imply about the solution to the original equation?
a-3/2=1/6(3a-9)
a-3/2=3a/6-9/6
4-3/2=(a/2-3/2)
a-3/2=a-3/2

Answer 1

kk lemme see ;/

Answer 2

ok

Answer 3

Hmmm

Answer 4

Nope i can't help on this one.

Answer 5

@iambatman

Answer 6

My guess is the order of operations

Answer 7

Well let me ask you this, are all the steps done correct, how would you go on to do this?

Answer 8

well i think they may have reduced it when it was a fraction

Answer 9

@iambatman

Answer 10

That's fine but is there anything wrong with the algebra?

Answer 11

Just a quick question, is that 4 suppose to be there?

Answer 12

Or did you mean to put a and put 4 by accident :P

Answer 13

a

Answer 14

Ok so can you do step 3 to step 4 please.

Answer 15

ok

Answer 16

they reduced the fraction down until they couldn't apply any more numbers

Answer 17

\[a-3/2=a/2-3/2 \implies a+a/2 = +3/2-3/2 \implies a+a/2 =0\] this is what I was looking for

Answer 18

So your final solution should a = 0, not a = a.

Answer 19

ok because a variable can't = a variable thx

Answer 20

No, it can be a variable just the last step was wrong in this case, it could have very well been a = a.

Answer 21

ok

Answer 22

thx