Question 670554
Let p be pears. Let x be peaches and y be plums.
You are told
{{{y = 4.5p}}}
{{{x = 2p}}}
and
{{{45 = p + x + y}}}
{{{45 = p + 2p + 4.5p}}}
{{{45 = 7.5p}}}
{{{45/7.5 = p}}}
{{{6 = p}}}
You bought 6 pears.
Now solve for peaches. peaches = y = 2p = 2*6 = 12
Plums = x = 4.5p = 4.5*6 = 27