Question

Rezolvati in multimea N ecuatia:
a)3(1-2x)+8=32
b)60:(3y+2)=12
c)1-3(8x-4)=1
d)1605+4(3-x)=2011

Answer 1

a) 3(1-2x)+8=32
3(1-2x)=24
1-2x=8
x=$\frac{7}{2}$

b)60:(3y+2)=12
 3y+2=5
3y=3
y=1

c)1-3(8x-4)=1
3(8x-4)=0
8x-4=0
x=$\frac{1}{2}$

d)1605+4(3-x)=2011
4(3-x)=406
3-x=101,5
x=-98,5