Question 571508
{{{ a + b + c = 540 }}}
{{{ a = 3c }}}
{{{ b = 2c }}}
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By substitution:
{{{ 3c + 2c + c = 540 }}}
{{{ 6c = 540 }}}
{{{ c = 90 }}}
and
{{{ a = 3c }}}
{{{ a = 3*90 }}}
{{{ a = 270 }}}
and
{{{ b = 2c }}}
{{{ b = 2*90 }}}
{{{ b = 180 }}}
a gets 270
b gets 180
c gets 90
check:
{{{ a + b + c = 540 }}}
{{{ 270 + 180 + 90 = 540 }}}
{{{ 540 = 540 }}}
OK