七年级数学一课一练中第95页第一题(x+2)/1+(x+7)/1=(x+3)/1+(x+6)/1第二题(x+2)/(x+3)+(x+3)/(x+4)=(x+4)/(x+5)=(x+1)/(x+2)不是两等号,第二题(x+2)/(x+3)+(x+3)/(x+4)=(x+4)/(x+5)+(x+1)/(x+2)