Question 1150261
Let {{{ x }}} = Alice's age now
{{{ x + 4 }}} = Bob's age now
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{{{ ( x + 4 ) + 2 = 2*( x + 2 ) }}}
{{{ x + 6 = 2x + 4 }}}
{{{ x = 2 }}}
and
{{{ x + 4 = 6 }}}
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Alice is 2
Bob is 6
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check:
{{{ 6 + 2 = 2*( 2 + 2 ) }}}
{{{ 8 = 2*4 }}}
{{{ 8 = 8 }}}
OK