Question

6/10=9/x x=?

Answer 1

@aiishaq

Answer 2

first multiply both sides by x
\[\frac{ 6 }{ 10 }*\color{red}{x}= \frac{ 9 }{ x }*\color {red}{x}\]

Answer 3

then multiply both sides by 10/6
\[\color {red}{\frac{ 10 }{ 6 }}*\frac{ 6 }{ 10 }x = \color {red}{\frac{ 10 }{ 6 }}*9\]

Answer 4

then you would have \[x = \frac{ 90 }{ 6 } \]\[x = 15\]