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3 years ago

8

Find a solution to the following system of equations. –5x + y = –5 –4x + 2y = 2

1 answer:

Arte-miy333 [17]3 years ago

8 0

-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2

-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5

solution is (2,5)

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