Simplify the following algebraic expressions.
(a) 3x+x-2x
(b) 5m-5-2(2m +1)
(c) (2m+5/2)-(m-1/4)
(d) 6x(2a+7/3)+4x(3a-5/2)
(e) 3r+4s-2r+7s
(d)4x (2次)-2x+7-2x+3x(2次)+5x-2
(其實我唔系好明,唔該解一解,thx)
I want to ask Maths
2007-08-12 11:02 pm
回答 (2)
2007-08-13 12:20 am
✔ 最佳答案
(a)=4x-2x=2x(b)=5m-5-4m-2=m-3
(c)=2m+5/2-m+1/4=m+11/4
(d)=12ax+14x+12ax-10x=24ax+4x
(e)=r+11s
(d)=7x(2次)+x+5
參考: myself (唔知點樣講解，就係咁解）
2007-08-15 12:47 am
b 既答案係 = m-7
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