Question

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Answer 1

R u k with cross multiplication?

Answer 2

Yes

Answer 3

First u cross multiply and then solve for y. can u do it?

Answer 4

I can but when i factor I get confused

Answer 5

(y-1)*(a+b)=(y+1)*(a-b)
good so far?

Answer 6

yes

Answer 7

If u hav ab+bc and want to factorise it see vat is common to both ab and bc. u will see that u hav b in both ab and bc. so take it out and write the remaining inside the bracket. that is
ab+bc=b(a+c)
is it clear?

Answer 8

can you solve for y now? give it a try

Answer 9

@ Aj kind of

Answer 10

Jolly..When I factor what do I do after that?

Answer 11

you try to get just y on one side of the equal sign.

Answer 12

k

Answer 13

what'd you get?

Answer 14

i have no clue what im doing. I think in more confused

Answer 15

(y-1)*(a+b)=(y+1)*(a-b)

you said you understood that^

show me from there.

Answer 16

ya -1a +by-1b

Answer 17

there should be an equal sign somewhere...

Answer 18

ya-1a=by-1b?

Answer 19

ask @ajprincess i need to go...

Answer 20

k

Answer 21

(y-1)*(a+b)=(y+1)*(a-b)
y(a+b)-1(a+b)=y(a-b)+1(a-b)
ay+by-a-b=ay-by+a-b
ay+by-a-b-ay+by-a+b=0
2by-2a=0
2by=2a
by=a
y=a/b