Question

Simplify 6(3+4) - 5(1 + 2).
A) 57
B) 19
C) 27
D) -9

Answer 1

To simplify the expression 6(3+4) - 5(1 + 2), we first calculate the sums inside the parentheses, then multiply those sums by the numbers outside and finally subtract the second multiplication result from the first, ending with a simplified result of 27.

Step-by-step explanation:

To simplify 6(3+4) - 5(1 + 2), we need to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction).

• First, solve the expressions in the parentheses:
  
  3 + 4 = 7
  
  1 + 2 = 3
• Next, multiply each sum by the number outside the parenthesis:
  
  6 * 7 = 42
  
  5 * 3 = 15
• Finally, subtract the second product from the first:
  
  42 - 15 = 27

Therefore, the expression simplifies to 27, which makes the answer (C) 27.