若y1=5x+3,y2=8-x,当y1比y2大1时,x=_____
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若y1=5x+3,y2=8-x,当y1比y2大1时,x=_____
若y1=5x+3,y2=8-x,当y1比y2大1时,x=_____
若y1=5x+3,y2=8-x,当y1比y2大1时,x=_____
y1 - y2
= 5x + 3 - (8 - x)
= 5x + 3 - 8 + x
= 6x - 5 = 1
=>
6x = 1 + 5
6x = 6
x = 1
所以x = 1
X=1. Y1=8,Y2=7
简写了 知道这是快乐寒假的 所以 没写过程
此题为X=1
1
1
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