$\"\"$

Perimeter of the triangle is 22 units.

Formula for perimeter of a triangle is $\"\"$ , where a,b are sides and c is hypotenuse of a triangle.

$\"\"$ (Write the formula) \ \

$\"\"$ (Substitute $\"\"$ ) $\"\"$

Evaluate the expression inside the parentheses.

$\"\"$ (Group like terms)

$\"\"$ (Combine like terms)

$\"\"$ (Subtract 6 from each side)

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

$\"\"$ (Apply additive identity property: $\"\"$ )

$\"\"$ (Divide each side by 2)

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ )

The value of x is 8 units. $\"\"$

The value of x is 8 units.