A number decreased by 10 is greater than -5

Question

A number increased by 1 is less than 9

A number plus 2 is at most 1

seven more than a number is less then or equal to -18

the sum of a number and 17 is no less than 26

Answer 1

Answers are in bold:

A number increased by 1 is less than 9 X+1 < 9 ==> X < 8

A number plus 2 is at most 1 X+2 <= 1 ==> X <= -1

seven more than a number is less then or equal to -18 X+7 <= -18 ==> X <= -25

the sum of a number and 17 is no less than 26 X+17 >= 26 ==> X >= 9