## girleegurl 2 years ago how to re arrange the following as y=mx+c 1. 1/x+5=2/y 2. 3/x=1/y

1. whpalmer4

$\frac1{x + 5} = \frac2y$ Is that correct? You really should either use the Equation editor or parentheses to make the meaning of your equations clear!

2. campbell_st

just cross multiply so the 1st equation becomes $y = 2(x + 5)$ now just expand and simplify to the equation to be in the form of y = mx + c same process for the 2nd equation.

3. girleegurl

1st question i understood but second one i just have no idea to solve it as y=mx+b

4. whpalmer4

$\frac3x=\frac1y$Multiply both sides by $$xy$$ and you get $3y = x$$y=\frac x3$

5. whpalmer4

which is $y=(\frac{1}3)x+b$where $$b=0$$

6. girleegurl

thanq dear