(X+5)+(X-2)=67 求X
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(X+5)+(X-2)=67求X(X+5)+(X-2)=67求X(X+5)+(X-2)=67求X(X+5)+(X-2)=672x+3=672x=67-32x=64x=32(X+5)+(X-2)=67X
(X+5)+(X-2)=67 求X
(X+5)+(X-2)=67 求X
(X+5)+(X-2)=67 求X
(X+5)+(X-2)=67
2x+3=67
2x=67-3
2x=64
x=32
(X+5)+(X-2)=67
X+5+X-2=67
2X+3=67
2X=64
X=32
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(X+5)+(X-2)=67 求X
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