解方程,0.1分之1+x-0.2分之0.4x-0.5=1分之2

要详细过程
2025-02-25 01:37:38
推荐回答(4个)
回答1:

1/0.1 + (0.4X-0.5)/(X-0.2) =2/1

(0.4X-0.5)/(X-0.2) = 2-1/0.1

(0.4X-0.5)/(X-0.2) =2 -10

(0.4X-0.5)/(X-0.2)=-8

(0.4X-0.5) = -8(X-0.2)

0.4X-0.5 = -8X + 1.6

0.4X + 8X = 1.6+0.5

8.4X=2.1

X=1/4=0.25

回答2:

10+X-2-0.5=2 x=-5.5

回答3:

1/0.1+x-0.4x/0.2-0.5=2/1
10+x-2x-0.5=2
x=7.5

回答4:

x=-7.5