Question 385266
one pan pizza and two cheesburgers provide 2860 claories. two pan pizzas and one cheeseburger provide 2990 calories. find the caloric content of each item
...
pan pizza --- x calories 
cheeseburgers - y calories
..
x+2y=2860.....................1
2x+y=2990......................2
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multiply equation 1 by -2
-2x-4y=-5720
add it to equation2
..
2x-2x+y-4y=2990-5720
-3y=-2730
/-3
y=-2730/-3
y=910 CALORIES PER CHEESEBURGER
plug value of y in1
x+1820=2860
-1820
x=1040 calories in pan pizza


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