Final answer:
By following the order of operations PEMDAS, we find that (-10) times (-5), which is 50, plus -7 equals 43.
Step-by-step explanation:
To solve the equation (-10) *(-5)+(-7), we need to follow the order of operations, often remembered through the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction(from left to right).
First, we tackle the multiplication: (-10) multiplied by (-5). When a negative number is multiplied with another negative number, the product is positive, so this gives us +50 as a result.
Next, we perform the addition. We add -7 to 50, which gives us a result of +43.
So, the result of the equation (-10) *(-5)+(-7) is 43.
Learn more about order of operations