Question 997292
Let {{{ t }}} = time in hours spent
driving on the 1st day
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{{{ t + 3 }}} = hours spent driving
on the 2nd day
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{{{ 2t - 3 }}} = hours spent driving
on the 3rd day
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{{{ t + t + 3 + 2t - 3 = 20 }}}
{{{ 4t = 20 }}}
{{{ t = 5 }}}
and
{{{ t + 3 = 5 + 3 }}}
{{{ t + 3 = 8 }}}
and
{{{ 2t - 3 = 2*5 - 3 }}}
{{{ 2t - 3 = 7 }}}
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5 hours the 1st day
8 hours the 2nd day
7 hours the 3rd day
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check:
{{{ 5 + 8 + 7 = 20 }}}
{{{ 20 = 20 }}}
OK