jewerls jewerls

04-03-2017
Mathematics

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X=-6+y x-3y=28 substitution

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wolf1728 wolf1728

04-03-2017

A) x=-6+y
B) x-3y=28
We can substitute equation A into B

B) -6 + y -3y=28
B) -2y = 34
y = -17
x = -23

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