Question

Afla x apartine R din :
a) 2-x/2=3+x/2+4
b) 16x+2/9-x+1/3=-x+1
c) 4x-x+1/6=2x/6-1/6

Answer 1

a) 2-x/2=3+x/2+4 
 2-x/2=7+x/2 
2=7+x
2x=-10
x=-5
b) 16x+2/9-x+1/3=-x+1
 16x+2/9+1/3=+1
144x+2+3=9
144x=4
x=4/144
x=1/36

c) 4x-x+1/6=2x/6-1/6
3x=2x/6-1/6-1/6
3x=x/3-2/6
3x=x/3-1/3
9x=x-1
8x=-1
x=-1/8