Question

I need some help on this problem. 7=2y - 3
I will type up what i have done, but my answer never gets me 7.

Answer 1

add 3
divide by 2

Answer 2

The purpose of solving for y is so that when you plug it back it, you would get 7 = 7

Answer 3

7=2y-3
first i subtract 3 from 7 and 3.
then i get 4=2y.
second i multipli 2 by each side and i get
4 times 2 equals 8 and 2 cancels out.
so i now have 8 equals y.
when i pluge that in i get 13.

Answer 4

I don't know what i have done wrong

Answer 5

add 3 instead

Answer 6

ok i'll try that

Answer 7

\[7=2y-3\\
7+3=2y-3+3\\
10=2y\]

Answer 8

because you have a "- 3" so to move/undo a minus, you have to add :)

Answer 9

ok i kind of get it now

Answer 10

ok i'll show my work give me a sec