作业帮[数学+英文题]代数式...救命..明天要交了..1.x和y是两个不同的整数.若x和y在数线上-5和2之间,且x在y的右边,求x和y的值.3.Find two sets of values of a and b so that the values of the expressions a+2b and 3a-3b are the
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[数学+英文题]代数式...救命..明天要交了..1.x和y是两个不同的整数.若x和y在数线上-5和2之间,且x在y的右边,求x和y的值.3.Find two sets of values of a and b so that the values of the expressions a+2b and 3a-3b are the
[数学+英文题]代数式...救命..明天要交了..
1.x和y是两个不同的整数.若x和y在数线上-5和2之间,且x在y的右边,求x和y的值.
3.Find two sets of values of a and b so that the values of the expressions a+2b and 3a-3b are the same.Explain briefly.
(请举例2项)
可以列式吗?
[数学+英文题]代数式...救命..明天要交了..1.x和y是两个不同的整数.若x和y在数线上-5和2之间,且x在y的右边,求x和y的值.3.Find two sets of values of a and b so that the values of the expressions a+2b and 3a-3b are the
1题:x={x:-5≤x≤2,x属于整数集},y={y:-5≤y≤2,y属于整数集,且x≠y}
3题:
1.a=0,b=0
2.a=10,b=4
Explaination:
from a+2b = 3a-3b ,know 2a=5b
first you can give a value to "a",then you will obtain the only value of "b" by the formula 2a=5b.
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[数学+英文题]代数式..在线等..救命..明天要交了..1.write down two algebraic language of 3-a(2+b).2.write down two of algebraic expression which has 3 terms and the sum of the cofficients of all the terms is equal 0...麻烦写列式..
[数学+英文题]代数式...救命..明天要交了..1.x和y是两个不同的整数.若x和y在数线上-5和2之间,且x在y的右边,求x和y的值.3.Find two sets of values of a and b so that the values of the expressions a+2b and 3a-3b are the
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