multiply both sides of the equation by the common denominator to eliminate the fractions 1/2x + 1/2y= 7 1/3x - 1/3y= -2/3?
回答 (2)
2014-10-16 9:47 am
Are you wondering why you have no answers ?
Possibly because your question is not clear.
For example when you wrote 1/2x did you mean (1/2)x or 1/(2x) ?
Possibly because your question is not clear.
For example when you wrote 1/2x did you mean (1/2)x or 1/(2x) ?
2014-10-16 10:20 am
x + y = 14
x - y = - 2_______ADD
2x = 12
x = 6
y = 8
PS
Use brackets !!!!!
x - y = - 2_______ADD
2x = 12
x = 6
y = 8
PS
Use brackets !!!!!
收錄日期: 2021-05-01 15:12:19
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