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A.4(x﹣1)=2x+8 |
B.4(x+1)=2x﹣8 |
C.![]() |
D..![]() |
A.x﹣1=5×1.5x |
B.3x+1=50×1.5x |
C.![]() |
D.180x+1=150×1.5x |
A.23-x=2×16+x | B.23+x=2×16-x |
C.23-x=2(16+x) | D.23+x=2(16-x) |
A.80x=2×120(42-x) | B.2×80x=120(42-x) |
C.120x=2×80(42-x) | D.2×120x=80(42-x) |
A.40%(1+80%)x=68 | B.80%(1+40%)x-x=68 |
C.x-80%(1+40%)x=68 | D.80%(1-40%)x-x=68 |
A.20x=55 | B.72x=6.7 |
C.20x=6700+12 | D.72x=6.712 |
A.![]() |
B.![]() |
C.2x=(x﹣5)﹣5 | D.2x=(x+5)+5 |
A.2×25x=40(36-x) | B.2×40x=25(36-x) |
C.40x=2×25(36-x) | D.25x=2×40(36-x) |
A.200x=300(x+5) | B.200(x+5)=300x |
C.200x=300(x-5) | D.200(x-5)=300x |
A.40%(1+80%)x=48 | B.80%(1+40%)x﹣x=48 |
C.x﹣80%(1+40%)x=48 | D.80%(1﹣40%)x﹣x=48 |
A..3×5x+10=4×8x+2 |
B.![]() |
C..![]() |
D.![]() |
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