Question

2x+11=21 solve for the indicated variable

Answer 1

Here is the equation:

`2x+11=21`

Leave the variable alone by subtracting 2 from both sides:

`2x+11 = 21 \\ 2x - 11 = 21-11`

The new equation becomes:

`2x=10`

Leave the variable alone(again) by dividing both sides by 2:

`2x / 2 = 10 / 2`

Simplify and it becomes:

`x = 5`