x |
3+x |
2 |
2+x |
A.x(2+x)-2(3+x)=1 | B.x(2+x)-2=2+x |
C.x(2+x)-2(3+x)=(2+x)(3+x) | D.x-2(3+x)=3+x |
x |
x-3 |
x+1 |
x-1 |
A.x=1 | B.x=-3 | C.x=3 | D.x=-1 |
x |
x-1 |
3a |
2x-2 |
1 |
x |
2 |
x-1 |
x+2 |
1-x |
A.2+(x+2)=3(x-1) | B.2-x+2=3(x-1) | C.2-(x+2)=3(1-x) | D.2-(x+2)=3(x-1) |
2x |
x-1 |
1 |
1-x |
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