Question 1138044


Alberto will be {{{69}}} years old in {{{fifteen}}} years.

How old is he now?

let Alberto's age now be {{{x}}}

 in {{{15}}} years he will have {{{x+15}}}

if Alberto will be {{{69}}} years old in {{{fifteen}}} years, we have 

{{{x+15=69}}}..........solve for {{{x}}}

{{{x=69-15}}}

{{{x=54}}} 

=>Alberto is {{{54}}} years old now