因为a+a+a+b+b=54,a+a+b+b+b=56,
所以把两个算式的左边和右边分别相加,就成了5a+5b=110,
即:5(a+b)=110,
a+b=22,
a=22-b;
把a=22-b代入a+a+a+b+b=54,
可得:22-b+22-b+22-b+b+b=54
66-b=54
b=66-54
b=12;
所以a=22-b=22-12=10;
故答案为:10,12.
a+a+a+b+b=54,a+a+b+b+b=56,那么a=_,b=_.
a+a+a+b+b=54,a+a+b+b+b=56,那么a=______,b=______.
数学人气:691 ℃时间:2019-11-14 01:41:09
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