也有现成的:
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)x/3 -5 = (5-x)/2
2(x+1) /3=5(x+1) /6 -1
(1/5)x +1 =(2x+1)/4
(5-2)/2 - (4+x)/3 =1
x/3 -1 = (1-x)/2
(x-2)/2 - (3x-2)/4 =-1
(5y+1)+(1-y)=(9y+1)+(1-3y)
7(2x-1)-3(4x-1)=4(3x+2)-1
10x=11 x=-1.1
2x+5=45
2(x+8)=48
88-25x=45+6x
566+48x=56-x
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3x^2+27=0
3x^2-4x-4=0.
(2y+1)^2+3(2y+1)+2=0.
(x-2)^2-3=0
2x^2-5x+1=0
x(8+x)=16
(2x-3)^2-2(2x-3)-3=0
x^2-17x+66=0
(x+1)^2-2(x-1)^2=6x-5 4
(x+2)^2=9(2x-1)^2
2[(x+3)-2(x+Ⅰ)]-5=O
7(2x-Ⅰ)-3(4x-Ⅰ)+2(3x-2)+Ⅰ=O
3(x-1)-12=2(2x+3)+4(x+3)
0.8-0.1=0.5x-0.7
6X(9一x)=4(3x一7)
我也不会,也是来求解
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