what kind Of math is and how to solve the equation with solution

Question

((2*2)+2-2)/2=x

Answer 1

((2*2) + 2 - 2) / 2 = x

You need to use PEMDAS.

parenthesis first

(4 + 2 - 2) / 2 = x

no exponents.

no multiplication and division in the parenthesis.

do addition and subtraction

4/2 = x

2 = x

Answer 2

my son is in summer school we need to know how and what kind of math this is enrichment work sheet work back-words this is the problem 8.09 + 7.5 / 1.6 - 3.5 x 4.2 with what i assume to be the answer 26.8 can you help us please