负[2m减3(m加1)减2]减1等于多少

2025-05-10 13:04:45
推荐回答(2个)
回答1:

–[2m–3( m+1)–2]–1
=–(2m–3m–3–2)–1
=–(–m–5)–1
=m+5–1
=m+4

回答2:

-[2m-3(m+1)-2]-1
=-(2m-3m-3-2)-1
=-2m+3m+3+2-1
=m+4。