Question

Rezolvati in Q ecuatia: |2x-1,3|=2,(3)

Answer 1

Răspuns:

S = {$\frac{109}{60}$, $-\frac{31}{60}$}

Explicație pas cu pas:

|2x-1,3| = 2,(3) => 2x - 1,3 = 2,(3) si 2x - 1,3 = 2,(3)

Rezolvam ecuatiile pe rand:

1.

2x - 1,3 = 2,(3)

$\frac{2x}{1} - \frac{13}{10} = 2\frac{1}{3}$

$\frac{60x}{30} - \frac{39}{30} = \frac{70}{30}$

60x - 39 = 70

60 x = 109

x1 = $\frac{109}{60}$

2.

2x - 1,3 = -2,(3)

60x - 39 = -70

60x = - 31

x2 = $-\frac{31}{60}$