October 2018 2 59 Report

Zapisz jak najprościej:

a) 3b+(b+1)

b) 5a-(a+1)

c) 2x-(3-5-x)

d) 2a+(3a--)+(a+b)

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

f) 7k-(m-2n+k)-(5k-3)+(2k-1)

g) 0,3x-(5+0,7y)-(0,9-0,1x)+(x-0,1)

h) 0,5a+(5-0,8b+2a)-(-b+1)

i) 3/4 - (1/4x + 1/2)

j) 1/3x + 1/9y + (2/3y - 4/9x - 2/7 )

TE 1/3 itp to są ułamki.


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