Question

Решите уровнение !x!+4=9 другое уровнение !у!-4=7 !x-2!=0 !x-5!=0
!2x-3!=0 !5x-8!=0

Answer 1

|x| = 9 -4 = 5
x = -5 или 5

|y| = 7 + 4 = 11
y = -11 или 11

|x-2| = 0
x - 2 = 0
x = 2

|x-5| = 0
x-5 = 0
x = 5

|2x-3| = 0
2x - 3 = 0
2x = 3
x = 1,5

|5x-8| = 0
5x - 8 = 0
5x = 8
x = 1,6