Solve the equation:
x-y/2 = x+y/3 =1
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Solve the equation: x-y/2 = x+y/3 =1?
2014-07-16 8:30 pm
回答 (3)
2014-07-17 1:57 am
(x - y)/2 = 1
(x + y)/3 = 1
x - y = 2
x + y = 3
x = 5/2
y = 1/2
(x + y)/3 = 1
x - y = 2
x + y = 3
x = 5/2
y = 1/2
2014-07-16 8:33 pm
Show parentheses
2014-07-16 9:26 pm
(x - y)/2 = 1
(x + y)/3 =1
x - y = 2
x + y = 3
add the two equations
2 x = 5 --> x = 2.5
subtract the 1st from the second
2 y = 1 --> y = 0.5
(x + y)/3 =1
x - y = 2
x + y = 3
add the two equations
2 x = 5 --> x = 2.5
subtract the 1st from the second
2 y = 1 --> y = 0.5
收錄日期: 2021-04-15 15:57:18
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https://hk.answers.yahoo.com/question/index?qid=20140716123051AAdvvxQ