Question

Ajutatima sa rezolv ecuatiile in multimea Q. a)0.47x-0.14x=1.65 b)7pe9x-2pe3x=2

Answer 1

a)0,47x-0,14x=1,65
0,33x=1,65
x=1,65:0,33
x=5
b)$\dfrac{7}{9x}- \dfrac{2}{3x}=2 \\ \dfrac{7-6}{9x}=2 \\ \dfrac{1}{9x}=2 \\ 18x=1=\ \textgreater \ x= \frac{1}{18}$
sper ca te-am ajutat