October 2018 2 10 Report

Wykonaj działania:

a) 4(x+3) =

8(y+4) =

5(-2a+b) =

-4(5y-z) =

b) 0,2(10x-y)*0,4 =

(-0,5y+9)*0,8=

(-2a+4b)*(-1,5) =

c) 1/5(10x+2,5)-0,4=

1/3(3y-2,7)=

-2/3(3,6a-1,5b)=

Wiem, jest tego trochę, ale bardzo prosze o pomoc ;)


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