Question 1091806
Let {{{ x }}} = number of 3 credit courses
{{{ 26 - x }}} = number of 4 credit courses
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{{{ 3x + 4*( 26 - x ) = 92 }}}
{{{ 3x + 104 - 4x = 92 }}}
{{{ x = 12 }}}
and
{{{ 26 - x = 26 - 12 }}}
{{{ 26 - x = 14 }}}
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There are 12 3 credit courses
There are 14 4 credit courses
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check:
{{{ 3x + 4*( 26 - x ) = 92 }}}
{{{ 3*12 + 4*14 = 92 }}}
{{{ 36 + 56 = 92 }}}
{{{ 92 = 92 }}}
OK