simplify: �ã5 PLUS�ã20 MINUS�ã27 PLUS�ã147

I am going to make a wild guess that you mean

?5 + ?20 - ?27 + ?147 which is
= ?5 + 2?5 - 3?3 + 7?3
= 3?5 + 4?3

those ?'s came up as square root signs on my new Apple computer but on my PC they now show up as a question mark, go figure.

they should be square root symbols,

To simplify the expression �ã5 + �ã20 - �ã27 + �ã147, we can follow the order of operations, which is commonly known as PEMDAS (parentheses, exponents, multiplication/division, and addition/subtraction).

Step 1: Addition/subtraction
Start by performing the addition and subtraction operations from left to right.
�ã5 + �ã20 - �ã27 + �ã147 = �ã(5 + 20) - �ã27 + �ã147
= �ã25 - �ã27 + �ã147

Step 2: Further simplification
Next, we simplify the expression as much as possible by performing each operation.
�ã25 - �ã27 + �ã147 = 5 - 27 + 147
= -22 + 147
= 125

Therefore, the simplified expression is 125.