Question

Rezolvati in multimea indicata ecuatiile:
VA ROG PUNCTELE d), e), f), g)
VAAAA ROGGG EEE URGGGGENNTTT!!!!

Answer 1

d. 3,25-2x=2,25+x x∈Q
1=3x
x=1/3
S={1/3}
e. 4x-3/9=3+x
3x=3+1/3
3x=10/3
x=10/9
S={1,(1)}
f. 5x+5/9=3+2x
3x=3-5/9
3x=22/9
x=22/27
S={22/27}
g. 2x²+1/8=1/8+x²
2x²=x²
x=0
S={0}