Question 1030015
Let x be the number of todos in 1 packet.
{{{ 9 - 2 = 7 }}} is what Don had after giving 2 to Emma
{{{ 7x }}} = toffos that Don ended up with
{{{ 2x + 25 }}} = toffos that Emma ended up with
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{{{ 7x = 2x + 25 }}}
{{{ 5x = 25 }}}
{{{ x = 5 }}}
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There are 5 toffos in 1 packet
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check:
{{{ 7x = 7*5 }}}
{{{ 7x = 35 }}}
and
{{{ 2x + 25 = 2*5 + 25 }}}
{{{ 2x + 25 = 35 }}}
OK