First one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11111111111111111111111111111111111111
Answer:
9/15=3/5
so 3/5 is equivalent fraction of the 9/15
in step 2 he made his first mistake
1/2(n-4)-3=3-(2n+3)
1/2n-4/2-3=3-(2n+3)
1/2n-2-3=3-(2n+3)
in the second step he put 5 instead of 2.
None of them are equivalent because
= 3(-2)+7
= -6 +7
= 1
