Solve for x -21<=x-20<1

$- 21 \leq x - 20 < 1$

Step 1

Add $20$ to each section of the inequality because it does not contain the variable we are trying to solve for.

$- 21 + 20 \leq x < 1 + 20$

Step 2

Add $- 21$ and $20$ .

$- 1 \leq x < 1 + 20$

Step 3

Add $1$ and $20$ .

$- 1 \leq x < 21$

Step 4

The result can be shown in multiple forms.

Inequality Form:

$- 1 \leq x < 21$

Interval Notation:

$[- 1, 21)$

Step 5