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A.6x+4(8-x)=38
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B.4x+6(8-x)=38
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C.4x+6x=38
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D.8x+6x=38
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A.9x+11=6x+16
C.9x-11=6x-16
B.9x+11=6x-16
D.9x-11=6x+16
A.6x+4(8-x)=38
C.8x+6x=38
B.4x+6x=38
D.4x+6(8-x)=38
A.3x﹣2=2x+9
C.3(x﹣2)=2(x+9)
B..
D.3(x﹣2)=2x+9
A.(x+4.5)=x﹣1
C.(x+4.5)=x+1
B.(x+1)=x﹣4.5
D..(x﹣1)=x+4.5
A.3x﹣2=2x+9
C.3(x﹣2)=2x+9
B.+2=
﹣9
D.=
A.7x-9=9x-7
C.7x-7=9x-9
B.7(x+1)=9(x-1)
D.7(x-1)=9(x+1)
A.x﹣1=5×1.5x
C.3x+1=50×1.5x
B.
D.180x+1=150×1.5x
A..3×5x+10=4×8x+2
C.
B..
D.
A.
C.
B.240(x﹣12)=160x
D.240x=160(x+12)
A.200x=300(x+5)
C.200(x+5)=300x
B.200x=300(x-5)
D.200(x-5)=300x
A.40%(1+80%)x=48
C.80%(1+40%)x﹣x=48
B.x﹣80%(1+40%)x=48
D.80%(1﹣40%)x﹣x=48
A.2×25x=40(36-x)
C.2×40x=25(36-x)
B.40x=2×25(36-x)
D.25x=2×40(36-x)
dyczsxyn
2025-02-17
初中数学 | 七年级上 | 选择题