Question

-(-2)-3+5*(-10)-6:(-1)

Answer 1

Решение и ответ:

-(-2) - 3 + 5 · (-10) - 6 ÷ (-1) = -45

1) 5 · (-10) = -50

2) 6 ÷ (-1) = -6

3) -(-2) - 3 = 2 - 3 = -1

4) -1 + (-50) = -1 - 50 = -51

5) -51 - (-6) = -51 + 6 = -45

Answer 2

To evaluate the expression -(-2)-3+5*(-10)-6:(-1), let's break it down step by step:

1. Start with the expression inside the parentheses: -(-2)

   • When you have a negative sign before parentheses, it is equivalent to multiplying the expression inside by -1.
   • So, -(-2) becomes 2. The expression becomes: 2-3+5*(-10)-6:(-1)

2. Next, evaluate the multiplication: 5*(-10)

   • Multiply 5 by -10 to get -50. The expression becomes: 2-3-50-6:(-1)

3. Now, let's deal with the division: 6:(-1)

   • Division can be thought of as multiplying by the reciprocal of the divisor.
   • The reciprocal of -1 is -1 itself, so 6 divided by (-1) is -6. The expression becomes: 2-3-50-(-6)

4. Simplify the expression further by removing the double negatives: -(-6) becomes 6. The expression becomes: 2-3-50+6

5. Finally, perform the remaining addition and subtraction from left to right: 2 - 3 = -1 -1 - 50 = -51 -51 + 6 = -45

Therefore, the value of the expression -(-2)-3+5*(-10)-6:(-1) is -45.