8*(x+0.2)=3.2
8*(x+0.2)=3.2
x=0.2
解方程:4(x+0.2)=2.4 0.375乘8-7x=0.2
4(x+0.2)=2.4
x+0.2=0.6
x=0.4
0.375×8-7x=0.2
3-7x=0.2
7x=3-0.2
7x=2.8
x=0.4
(0.2+x)×1.3-(x+0.2)=0.6
(0.2+x)(1.3-1)=0.6
(0.2+x)*0.3=0.6
0.06+0.3x=0.6
0.3x=0.54
x=0.18
2X(x+0.2)=0.6
x+0.2等于0.6除以2等于0.3
x等于0.3减0.2
等于0.1
1.5(X+0.2)=9 X=?
1.5(X+0.2)=9
1.5X+0.3=9
1.5x=8.7
x=5.8
12.8÷(x+0.2)=4
12.8÷(x+0.2)=4
解:x+0.2=12.8÷4
x+0.2=3.2
x=3.2-0.2
x=3
0.3(x+0.2)=12.06
解:0.3(x+0.2)=12.06
x+0.2=12.06/0.3
x+0.2=40.2
x=40.2-0.2
x=40
0.08*X+0.2*Y=23求X=?
这是一个不定方程 x与y
都可以是任意数。只要x与y能满足这个方程式就可以了。
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
5x-4.9x=0.31
0.1x=0.31
x=0.31÷0.1
x=31
3.4÷x=4.8÷24
3.4=0.2x
x=3.4÷0.2
x=17
8-3(x+0.2)=0.8
8-3x-0.6=0.8
-3x=-6.6
x=-6.6÷(-3)
x=2.2
不懂可追问!
8.4-{x+0.2)=5.6
8.4-(x+0.2)=5.6
x+0.2=8.4-5.6
x+0.2=2.8
x=2.8-0.2
x=2.6
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