5×-3(2×-1)
5× − 3(2× − 1)
= 5× − 6× + 3 (distributing the negative sign)
= -1× + 3
= -x + 3
To solve this expression, we follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).
Step 1: Evaluate the expression inside the parentheses.
Inside the parentheses, we have (2×-1). To calculate this, multiply 2 by -1:
2×-1 = -2
So, the expression becomes 5×-3(-2).
Step 2: Apply the multiplication.
Multiply 5 by -3 and -3 by -2:
5×-3×(-2) = -15×(-2)
Step 3: Evaluate the multiplication result.
Multiplying two negative numbers results in a positive number:
-15×(-2) = 30
Therefore, the final answer is: 30