Question

2х+1,5=37,5
3х-8,5==66,5
5х-9,5=85,5

Answer 1

$\left[1}\right] \\2x+1,5=37,5\\2x=37,5-1,5\\2x=36\\x=36:2\\x=18$

$\left[2\right] \\3x-8,5=66,5\\3x=66,5+8,5\\3x=75\\x=75:3\\x=25$

$\left[3\right] \\5x-9,5=85,5\\5x=85,5+9,5\\5x=95\\x=95:5\\x=19$

Answer 2

Ответ:

2x=37,5-1,5

2x=36

x=36/2

x=18

3x=66,5+8,5

3x=75

x=75/3

x=25

5x=85,5+9,5

5x=95

x=95/5

x=19