Solve and Check the Linear Equation $$0.40 x - 0.20 ( 80 + x ) = - 0.10 ( 80 )$$

Multiple Choice

Solve and check the linear equation.
- $$0.40 x - 0.20 ( 80 + x ) = - 0.10 ( 80 )$$

A) $\{ 40 \}$
B) $\{ 30 \}$
C) $\{ 50 \}$
D) $\{ 20 \}$ Find all values of x satisfying the given conditions.