Question

What is the answer for x-3/x=9/10

Answer 1

`(3)/(x)=(9)/(10)`

Start by multiplying both sides of the equality by x

`\begin{gathered} x\cdot(3)/(x)=(9)/(10)\cdot x \\ 3=(9x)/(10) \end{gathered}`

Multiply boths sides by 10

`\begin{gathered} 3\cdot10=(9x)/(10)\cdot10 \\ 30=9x \end{gathered}`

divide both sides by 9

`\begin{gathered} (30)/(9)=(9x)/(9) \\ (30)/(9)=x \end{gathered}`

simplify the expression

`\begin{gathered} x=(30)/(9) \\ x=(10)/(3) \end{gathered}`