Answer:
129
Step-by-step explanation:
The order of operations is PEMDAS
P = parenthesis
E = exponents
M = multiplication
D = division
A = addition
s = subtraction
starting with
+ 9 (12 / 3 x 2) - 7
We first work the terms in the parenthesis ( 12 / 3 x 2)
A rule is if all the operations are multiplication and division only we work from left to right so (4 x 2) then (8)
+ 9(8) - 7
Next we take care of the exponent (the remaining parenthesis are a multiplication operation not parenthesis that contain other operations)
64 + 9(8) - 7
Next we do the multiplication
64 + 72 - 7
Another rule is if all the operations are addition and subtraction we work from left to right
136 - 7 = ?
? = 129
