Question

how do you solve for y in both equations ?
1/x +1/y =3 and 1/x +2/y +3/y=4 in the fastest way possible ? :D

Answer 1

u cud simply subtract both the equations!!

Answer 2

And you get
\[
\frac{3}{y}+\frac{2}{y}-\frac{1}{y}=4
-3
\]

Answer 3

explain please! :D no i meant separately ....

Answer 4

\[
\frac 4 y = 1\\
y=4
\]

Answer 5

Replace in one of the equation and solve for x

Answer 6

\[
\frac{1}{x}+\frac{1}{4}=3\\
x=\frac 4{11}
\]

Answer 7

Did you get it?

Answer 8

yup, thank youu!

Answer 9

yw