Simplify first square bracket

Solve inside the inner parentheses: $4+2=6$, then $24 \div 6 = 4$. Next, $120-4=116$. Then, $116 \times 2 = 232$. For the second part: $50 \div 5 = 10$, $10+6=16$. Subtracting these gives $232-16=216$.

$(120 - 4) \times 2 - 16 = 232 - 16 = 216$

Simplify second square bracket

Solve inside the parentheses: $12 \times 2 = 24$, $18+24=42$, $42-8=34$. For the second parenthesis: $9 \div 3 = 3$, $3+5=8$. Subtracting gives $34-8=26$.

$(34) - (8) = 26$

Combine both results

Add the results of the two square brackets: $216 + 26 = 242$.

$216 + 26 = 242$