1.Rozwiąż równianie.
a) -2x+4=5x+25
b) 7y-8=-y+24
c) -8z+5=-z-1
d) -2m+7=m-6
e) 6-5x=2x-7
f) -5t+1=8-6t
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a)
-2x+4=5x+25
-2x-5x=25-4
-7x=21 /:-7
x=-3
b)
7y-8=-y+24
7y+y = 24+8
8y = 32 / :8
y=4
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
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
Zadanie masz rozwiązna w załączniku :)