Question 860376
Let {{{ g }}} = George's age now
Let {{{ s }}} = Sam's age now
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(1) {{{ g = 3s }}}
(2) {{{ g + 5 + s + 5 = 46 }}}
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(2) {{{ g + s + 10 = 46 }}}
(2) {{{ g + s = 36 }}}
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(a)
(2) {{{ ( g + 5 ) + ( s + 5 ) = 46 }}}
is the relationship of their ages in 5 yrs
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(b)
Substitute (1) into (2)
(2) {{{ g + s = 36 }}}
(2) {{{ 3s + s = 36 }}} 
(2) {{{ 4s = 36 }}}
(2) {{{ s = 9 }}}
and
(1) {{{ g = 3s }}}
(1) {{{ g = 3*9 }}}
(1) {{{ g = 27 }}}
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George is 27
Sam is 9