Question

some help me to solve this:
1/y+1/y+4=1/7

Answer 1

\[\frac{1}{y}+\frac{1}{y+4}=\frac{1}{7}\]?

Answer 2

a good first step would be to add the fractions on the left to get
\[\frac{y+4+y}{y(y+4)}=\frac{2y+4}{y(y+4)}=\frac{1}{7}\]

Answer 3

then solve the ratio via
\[7(2y+4)=y(y+4)\]

Answer 4

you good from there?

Answer 5

I believe so ..

Answer 6

ok
you will have to solve a quadratic equation

Answer 7

so far I have this
y^2-10y-28