Question

1. simplify the expression $6 \cdot 5 - (6 - 4) \cdot 5 - 5 + 6$.

12
15
31
23

Explanation:

Step1: Simplify innermost parentheses

First, simplify the expression inside the innermost parentheses: \(6 - 4 = 2\).

Step2: Simplify the brackets

Now, simplify the expression inside the brackets: \((2)\cdot5 - 5 = 10 - 5 = 5\).

Step3: Simplify the multiplication

Next, simplify the multiplication: \(6\cdot5 = 30\).

Step4: Combine the terms

Now, substitute the simplified values back into the original expression: \(30 - 5 + 6\). Then, perform the arithmetic operations from left to right: \(30 - 5 = 25\), and \(25 + 6 = 31\).

Answer:

31