a fost răspuns

Rezolvati ecuatiile in N:
a)3(1-2x)+8=32
b)1-3(8x-4)=1
c)60/(3x+2)=12
d)1605+4(3-x)=2611
Va rog frumos!!!!!

Răspuns :

Devaask
a)3(1-2x)+8=32
3-6x+8=32
-6x=21
x=-21/6=-7/2=-3,5
b)1-3(8x-4)=1
1-24x+12=1
-24x=-12
x=12/24=1/2
c)60/(3x+2)=12
60=12(3x+2)
60=36x+24
36=36x
x=1
d)1605+4(3--x)=2611
1605+12-4x=2611
-4x=994
x=-994/4=248,5