October 2018 2 21 Report

a) (3a+5)-(-2a-4)=

b) (2x+3y-1)-(4x-y+3)=

c) (3x+y+2)-(5x-y+3)-(5x+2y)=

d) (3x-2)+(4x+5)-(2+y)=

e) (2a+2b)+(2a-3b+2)+(-3a-3b-5)


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