Rozwiąż równania:
f) - trzy piąte x = - 5
g) trzy czwarte x = - cztery dziewiąte
h) 0,1 x = - 7
-3/5 x = -5 / -3/5
x=8 1/3
3/4 x = - 4/9 / 3/4
x= - 16/27
0,1x = -7 /0,1
x= -70
f) -3/5 x = - 5 /:(-3/5) x=-5*(-5/3) x=25/3 x=8 1/3 spr. -3/5*8 1/3=-5 -3/5*25/3=-5 -75/15=-5 -5=-5 g) 3/4x = - 4/9 /:3/4 x=-4/9*4/3 x=-16/27
spr.
3/4*(-16/27)=-4/9
-4/9=-4/9 h) 0,1 x = - 7 /:0,1 x=-70
0,1*(-70)=-7
-7=-7
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-3/5 x = -5 / -3/5
x=8 1/3
3/4 x = - 4/9 / 3/4
x= - 16/27
0,1x = -7 /0,1
x= -70
f)
-3/5 x = - 5 /:(-3/5)
x=-5*(-5/3)
x=25/3
x=8 1/3
spr.
-3/5*8 1/3=-5
-3/5*25/3=-5
-75/15=-5
-5=-5
g)
3/4x = - 4/9 /:3/4
x=-4/9*4/3
x=-16/27
spr.
3/4*(-16/27)=-4/9
-4/9=-4/9
h)
0,1 x = - 7 /:0,1
x=-70
spr.
0,1*(-70)=-7
-7=-7