Final answer:
To solve 10 - (7 + 1), first compute inside the parentheses: 7 + 1 = 8, then subtract 8 from 10 to get 2. For 18 divided by (6 + 3), add 6 + 3 to get 9, then divide 18 by 9 to obtain 2.
Step-by-step explanation:
The two Math problems you're asking about involve basic arithmetic operations. Let’s solve them step by step:
- For the expression 10 - (7 + 1), you first perform the operation inside the parentheses, which is 7 + 1 = 8. Subsequently, you subtract this result from 10, giving you 10 - 8 = 2.
- The second expression is 18 divided by (6 + 3). Again, start with the operation inside the parentheses: 6 + 3 = 9. Then you divide 18 by this sum which gives an answer of 18 ÷ 9 = 2.
Always remember to follow the order of operations, often recalled by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction).
To answer the given expression, we will work step by step:
Simplify the terms inside the parentheses: (7 + 1) = 8
Perform the subtraction: 10 - 8 = 2
Simplify the terms inside the parentheses: (6 + 3) = 9
Perform the division: 18 ÷ 9 = 2
Perform the subtraction: 2 - 2 = 0
Therefore, the answer to the expression -10 - (7 + 1) - 18 ÷ (6 + 3) is 0.