Question 646745


if {{{15}}} is {{{added}}} to a number {{{x}}},

{{{x+15}}}
 
the result ({{{x+15}}}) is {{{56}}}{{{ less}}} than {{{twice}}} the number ({{{2x}}}).

{{{(x+15)+56=2x}}}

{{{x+71=2x}}}

{{{71=2x-x}}}

{{{highlight(71=x)}}}