Question 906850
Let {{{ c }}} = number of calories in the ice cream
{{{ c + 100 }}} = number of calories in the pie
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{{{ c + c + 100 = 850 }}}
{{{ 2c = 750 }}}
{{{ c = 375 }}}
{{{ c + 100 = 475 }}}
There are 375 calories in the ice cream
There are 475 calories in the pie
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check:
{{{ 375 + 475 = 850 }}}
OK