Question 717436
Let {{{ n }}} = the number
{{{ (1/2)*n + 3n + (3/5)*n = n - 5 }}}
{{{ (1/2)*n + 3n + (3/5)*n - n =  - 5 }}}
{{{ n*( 5/10 + 30/10 + 6/10 - 10/10 ) = -5 }}}
Multiply both sides by {{{ 10 }}}
{{{ n*( 5 + 30 + 6 - 10 ) = -50 }}}
{{{ 31n = -50 }}}
{{{ n = -50/31 }}}
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check answer:
{{{ n = -50/31 }}}
{{{ n = -1.6129 }}}
{{{ (1/2)*n + 3n + (3/5)*n = n - 5 }}}
{{{ -1.6129*( .5 + 3 + .6 ) = -1.6129 - 5 }}}
{{{ -1.6129*4.1 = -6.6129 }}}
{{{ -6.61289 = -6.6129 }}}
close enough