Given the expression
We must need solve what's inside ( ) first, and 7 - 2 = 5, therefore:
Now we have a multiplication, we must do them before we do the sums and substractions, and 5 x 24 = 120:
Now we don't have an order or priority, we can do any of them. I'll do the sum first and then subtract 10 after.
Now we completely simplified the expression, and we can say that
The order to solve a numeric expression is:
1 - Solve everything inside ( )
2 - Solve everything inside [ ]
3 - Solve everything inside { }
4 - Divide and Multiply
5 - Add and Subtract