Question

Va rog repede dau coroana,5 stele si ma si abonez!!!​

Answer 1

Răspuns:

1.

$|2x + 1 | = - 3$

$2x + 1 = - 3$

$2x = - 3 - 1$

$2x = - 4$

$x = - 4 supra 2$

$x = - 2$

2.

$|5x - 10| = 0$

$5x - 10 = 0$

$5x = 0 + 10$

$5x = 10$

$x = 10 supra 5$

$x = 2$

3.

$|2x - 61| = 8$

$2x - 61 = 8$

$2x = 8 + 61$

$2x = 69$

$x = 69 supra 2$

$x = 34.5$

4.

$|x| = 3$

$x = 3$

5.

$|x - 1| = 20$

$x - 1 = 20$

$x = 20 + 1$

$x = 21$

6.

$|14x - 4| = 16$

$14x - 4 = 16$

$14x = 16 + 4$

$14x = 20$

$x = 20 supra 14$

$x = 7 supra 10$

7.

$|10x + 8| = 9$

$10x + 8 = 9$

$10x = 9 - 8$

$10x = 1$

$x = 1 supra 10$

8.

$|x - 3| = 8$

$x - 3 = 8$

$x = 8 + 3$

$x = 11$

9.

$|3x - 72| = 0$

$3x - 72 = 0$

$3x = 0 + 72$

$3x = 72$

$x = 72 supra 3$

$x = 24$

10.

$|x + 2| = 11$

$x + 2 = 11$

$x = 11 - 2$

$x = 9$