7x÷3=8.19 3(x一2)=9.6 7x一2x=637x÷3=8.19 3(x一2)=9.67x一2x=63 3×7十4x=33
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7x÷3=8.193(x一2)=9.67x一2x=637x÷3=8.193(x一2)=9.67x一2x=633×7十4x=337x÷3=8.193(x一2)=9.67x一2x=637x÷3=8.193
7x÷3=8.19 3(x一2)=9.6 7x一2x=637x÷3=8.19 3(x一2)=9.67x一2x=63 3×7十4x=33
7x÷3=8.19 3(x一2)=9.6 7x一2x=63
7x÷3=8.19 3(x一2)=9.6
7x一2x=63 3×7十4x=33
7x÷3=8.19 3(x一2)=9.6 7x一2x=637x÷3=8.19 3(x一2)=9.67x一2x=63 3×7十4x=33
4(2X一9)+3(X一15)=7(X一1)一2
4(2x一7)一2(x一1)=3(x一1)一2 x=?
7x÷3=8.19 3(x一2)=9.6 7x一2x=637x÷3=8.19 3(x一2)=9.67x一2x=63 3×7十4x=33
解方程 3(X一2)=9.6 7X÷3=8.19
3x一2x(10一x)=15
3X一(2一X)=5X
4x一3(20一x)=6x一7(9一x)
解方程7X一2/1[x一2/1(X一1)]=3/2(x一1)
2X一3一(一5X一10)=5 (一7x+3)一(5x一3)=10 (5X一3)一(一7X十3)=2X一3一(一5X一10)=5(一7x+3)一(5x一3)=10(5X一3)一(一7X十3)=3分别怎么解?
7x一3x=64,
5x十2x=42 15十2x一3=48 2x十3x十17=37 6x一3x=6÷5 9x一2x=15x十2x=4215十2x一3=482x十3x十17=376x一3x=6÷59x一2x=1.4十0.077(2x一6)=15.4
x一2分之1一x=3一3分之x一2
5X一18=3-2X X=?
7(x+4)=2(2一x)+3(4x一2)
7(x+4)=2(2一X)十3(4X一2)
(2x一1)=x(3x+2)一7解方程
5分之3x一7>=2分之x-2,4分之x一12分之2x一1>6分之1一3分之x
5x(x一3)=6一2x (x十6)2=9 5x(x一3)=6一2x