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06-07-2017
Mathematics

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Solve the system of equations algebraically

2x+3y=11
Y= -2x + 1

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Аноним Аноним

06-07-2017

2x+3y=11
Y= -2x + 1 re-write -2x - y = -1
so
2x + 3y =11
-2x - y = -1
--------------add
2y = 10
y = 5

Y= -2x + 1
5 = -2x + 1
-2x = 4
x = -2

answer
solution (-2 ,5)

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