Assume that the number is x
Four times the number means multiply x by 4
[tex]4\times x=4x[/tex]The difference between 4 times the number and 5 means subtract 5 from 4x, then equate the difference by 15
[tex]4x-5=15[/tex]Now, we will solve the equation to find x
Add 5 to both sides
[tex]\begin{gathered} 4x-5+5=15+5 \\ 4x=20 \end{gathered}[/tex]Divide both sides by 4
[tex]\begin{gathered} \frac{4x}{4}=\frac{20}{4} \\ x=5 \end{gathered}[/tex]The number is 5
