求教 数学JJ--39

 39.     有多少对（x,y）x,y都是整数，满足2X+Y=12且Y的绝对值小于等于12

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MingLiU","serif"; mso-font-kerning: 0pt; mso-bidi-font-family: PMingLiU;">由于在WU  MM的帖子中没人谈论这题目, 考期很近,所以单独发上来求教

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MingLiU","serif"; mso-font-kerning: 0pt; mso-bidi-font-family: PMingLiU;">（x,y）x,y 这是什么意思,我题目没理解~~~

Y=12-2X在[-12，12]范围内，可以得到X在[0，12]范围，X是整数，共13个