October 2018 1 22 Report

Czy to jest dobrze rozwiązane?

b) 7y-8= -y+24

b) 7y +y = 8 +24

8y = 32 / 8

y= 4

c) -8z+5= -z-1

c) -8z + z = -5 -1

-7z = -6 / -7

z= ulamek szesc siodmych

d) -2m+7= m-6

d) -2m -m = -7 -6

-3m = -13 / -3

m = 4 cale i jedna trzecia

e) 6-5x= 2x-7

e) -5x -2x = -6 -7

-7x = -13 / -7

x = 1 cala i szesc siodmych

f) -5t+1= 8-6t

f) -5t + 6t = -1 +8

t = 7 / 1

t = 7


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