Answer: [tex]=50,3[/tex]
Step-by-step explanation:
For this exercise it is important to remember the multiplication of signs. Notice that:
[tex](+)(+)=+\\\\(-)(-)=+\\\\(-)(+)=-\\\\(+)(-)=-[/tex]
In this case you have the following expression:
[tex]((15,3+3,7)2,8)-2,9[/tex]
The steps to solve it are:
Step 1: You must solve the addition inside the parentheses:
[tex]((15,3+3,7)2,8)-2,9=((19)2,8)-2,9[/tex]
Step 2: Now you must solve the multiplication:
[tex]=53,2-2,9[/tex]
Step 3: Finally, you must solve the subtraction. Therefore, you get:
[tex]=50,3[/tex]
