Question

Which of the following is equivalent to4−(−5∗9−1)÷2+(5)2−7?

Answer 1

Answer:

-20

Step-by-step explanation:

Follow the PEDMAS order (from top to bottom):

Parentheses

Exponents

Division and Multiplication

Addition and Subtraction

(-5 × 9 - 1) ÷ 2 + (5)2 - 7

(-45 - 1) ÷ 2 + 10 - 7

-46 ÷ 2 + 10 - 7

-23 + 10 - 7

-13 - 7

-20

Answer 2

Answer:

-20

Step-by-step explanation:

=> $(-5 * 9-1)/2+(5)2-7$

Expanding parenthesis

=> $(-45-1)/2+10-7$

=> $-46/2 + 3$

=> -23 + 3

=> -20