整式的加减练习题马小虎同学在去括号中,做了4个题,其中正确的是()a:x+(-y+z)=x-y+zb:x-(-y+z)=x-y-zc:x+(-y+z)=x+y+zd:x-(-y+z)=x+Y+z我觉得好像都是错的,

Question

整式的加减练习题 马小虎同学在去括号中,做了4个题,其中正确的是( ) a:x+(-y+z)=x-y+z b:x-(-y+z)
=x-y-z c:x+(-y+z)=x+y+z
d:x-(-y+z)=x+Y+z
我觉得好像都是错的,

Answer 1

整式的加减练习题 马小虎同学在去括号中,做了4个题,其中正确的是( a)
a:x+(-y+z)=x-y+z b:x-(-y+z)=x-y-z c:x+(-y+z)=x+y+z d:x-(-y+z)=x+Y+z