Question 1089857
{{{ (11-x) / (23-x) = 2/5 }}}
{{{  55-5x = 46-2x }}}
{{{       9 = 3x }}}
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Ans: {{{ highlight(x = 3) }}}
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Check:  {{{ (11-3)/(23-3) = 8/20 = 2/5 }}}