Question

6 less than twice a number is 5

Answer 1

To write this statement in mathematical form let x be the number we don't know. Since we have twice the number this means 2x, then we have to substract 6, that is, 2x-6. This is equatl to 5, then the equation is

`2x-6=5`

Solving for x we have

`\begin{gathered} 2x-6=5 \\ 2x=5+6 \\ 2x=11 \\ x=(11)/(2) \\ x=5.5 \end{gathered}`

Therefore x=5.5.