(1) (2) (3) (4) (5) 设当x为何值时,y1与y2互为相反数? 查看更多

 

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计算:(1)2t-4=3t+5
(2)4-3(x-3)=x+10
(3)
(4)
(5)设,当x为何值时,y1与y2互为相反数?

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(1)2t-4=3t+5
(2)4-3(x-3)=x+10
(3)
x-3
5
-
x-4
10
=1

(4)
0.01x-0.3
0.02
-
0.1x+1
0.5
=4

(5)设y1=
1
5
x+1,y2=
2x+1
4
,当x为何值时,y1与y2互为相反数?

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