Question

((15,3+3,7).2,8)-2,9=?

Answer 1

Answer:
`=50,3`

Explanation:

For this exercise it is important to remember the multiplication of signs. Notice that:

`(+)(+)=+\\\\(-)(-)=+\\\\(-)(+)=-\\\\(+)(-)=-`

In this case you have the following expression:

`((15,3+3,7)2,8)-2,9`

The steps to solve it are:

Step 1: You must solve the addition inside the parentheses:

`((15,3+3,7)2,8)-2,9=((19)2,8)-2,9`

Step 2: Now you must solve the multiplication:

`=53,2-2,9`

Step 3: Finally, you must solve the subtraction. Therefore, you get:

`=50,3`