aniyasweettreat aniyasweettreat

09-05-2018
Mathematics

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Which ordered pair is a solution of the equation? 3x-y=133x−y=13

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choixongdong choixongdong

09-05-2018

3x - y = 133
x - y = 13
------------------subtract
2x = 120
x = 60

substitute x = 60 into x - y = 13 to find y

x - y = 13
60 - y = 13
y = 60 -13
y = 47

answer
x = 60 and y = 47

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