方程式!!!

1.5h+1-4h=10
1.5h-4h=10-1
-2.5h=9
(-2.5h)÷(-2.5)=9÷(-2.5)
h=-3.6

1.5h+1-4h=10
-2.5h+1=10
-2.5h=9
h=-3.6

1.5h+1-4h-1=10-1
1.5h-4h=9
-2.5h=9
-2.5h/-2.5=9/-2.5
h=-3.6

1.5h+1-4h=10
1.5h-4h =10-1
-2.5h =9
h =9/-2.5
h = -3.6

4h-1.5h-1= -10
4h-1.5h= -9
2.5h= -9
h= -9/2.5
h=3.6

2007-10-02 18:42:52 補充：
打小左個 - tim^^..答案係 -3.6

1.5h+1-4h=10

1.5h-4h=10-1

-2.5h=9

ans:-3.6

-2.5h+1-1=10-1
-2.5h=9
-2.5h*(-1)=9*(-1)
2.5h=-9
2.5h/2.5=9/2.5
h=3.6

1.5h + 1 - 4h = 10
(1.5 - 4)h = 9
-2.5 h = 9
h = -3.6

列式

１．５h + 1 - 4h =10
( 1.5 - 4 )h= 10 - 1

-2.5h=9
h = 3.6