Question

Rozwiąż równanie.

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

d)-2m+7=m-6

e)6-5x=2x-7

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

Answer 1

c)

-8z+z=-1-5

-7z=-6

z=6/7

 

d)

-2m-m=-6-7

-3m=-13

m=13/3

 

e)

-5x-2x=-7-6

-7x=-13

x=13/7

 

f)

-5t+6t=8-1

t=7

Answer 2

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

-8z+z= -1-5

-7z= -6 /:(-7)

z= 6/7 

 

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

-3m= -13 /:(-3)

m= 13/3 = 4  1/3

 

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

-7x= -13 /:(-7)

x= 13/7= 1  6/7

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

-5t+6t= 8-1

t= 7