junior108 junior108

27-02-2018
Mathematics

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Which ordered pair is the solution to the system of linear equations -5x+y=26 and 2x-7y=16

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MahdiNaseri MahdiNaseri

27-02-2018

Use the elimination method.
(-5x + y = 26)7
2x - 7y = 16

-35x + 7y = 182
2x - 7y = 16

-33x = 198
x = -6

Substitiute -6 for x in one of the equations.
2x -7y = 16
2(-6) - 7y = 16
-12 - 7y =16
-7y = 28
y = -4

The ordered pair would be (-6,-4)

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