Use the order of operations to evaluate: βˆ’7.6 βˆ’ 2[9 + (βˆ’6.8)] First, simplify the parentheses: [9 + (βˆ’6.8)] = 2.2. Now the expression is: βˆ’7.6 βˆ’ 2(2.2). Since there are no exponents in this problem, the next step is βœ” (- 2)2.2 . Simplify the previous step and you get βœ” -7.6 – 4.4 . The final answer is