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--- mywiki:qida_wiki:mathematics [2015/09/17 14:56] – shaoqida
+++ mywiki:qida_wiki:mathematics [2019/09/15 18:55] (current) – external edit 127.0.0.1
@@ Line 81: / Line 81: @@
 Ans: **24**
+Q3)<a>(3X-3y+10)-(2X+2y-3)
+=X-y+7
+Ans: **X-y+7**
+<b>) (4a+4b-10)-(2a-3b)+5
+=2a+b-5
+Ans: **2a+b-5**
+Q3)?
+Q4)?
+Q5)87X55+23X55
+=(87+23)X55
+=110X55
+=5550
+Ans: **5550**