(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项

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(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项

(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项
(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项

(-a+3b)+(-4a+3b)去括号在合并同类项 3(m-2)+2(m+六分之七)去括号并同类项
(-a+3b)+(-4a+3b)
= -a+3b-4a+3b
= -5a+6b
3(m-2)+2(m+六分之七)
=3m-6+2m+3分之7
=5m-3分之11

(-a+3b)+(-4a+3b)=-a+3b-4a+3b=-(a+4a)+(3b+3b)=-5a+6b

3(m-2)+2(m+六分之七)=3m-6+2m+三分之七=5m-三分之十一