化简m-{3n-4m+[m-5(m-n)+m]}

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化简m-{3n-4m+[m-5(m-n)+m]}化简m-{3n-4m+[m-5(m-n)+m]}化简m-{3n-4m+[m-5(m-n)+m]}m-{3n-4m+[m-5(m-n)+m]}=m-{3n

化简m-{3n-4m+[m-5(m-n)+m]}
化简m-{3n-4m+[m-5(m-n)+m]}

化简m-{3n-4m+[m-5(m-n)+m]}
m-{3n-4m+[m-5(m-n)+m]}
=m-{3n-4m+[m-5m+5n+m}
=m-{3n-4m-3m+5n}
=m-{8n-7m}
=m-8n+7m
=8m-8n

m-{3n-4m+[m-5(m-n)+m]}
=m-[3n-4m+(m-5m+5n+m)]
=m-[3n-4m+5n-3m]
=m-(8n-7m)
8m-8n