问题
解答题
计算: (1)-2(m+3)+3(m-2); (2)5(y+1)-10×(y-
|
答案
(1)-2(m+3)+3(m-2)
=-2m-6+3m-6
=m-12.
(2)5(y+1)-10×(y-
+1 10
)1 5
=5y+5-10y+1-2
=-5y+4.
计算: (1)-2(m+3)+3(m-2); (2)5(y+1)-10×(y-
|
(1)-2(m+3)+3(m-2)
=-2m-6+3m-6
=m-12.
(2)5(y+1)-10×(y-
+1 10
)1 5
=5y+5-10y+1-2
=-5y+4.