A is 32 because
2a=64
a=64/2
Answer: 31
How: If there are two negative signs like this, you would connect them together and make it into a addition sign where you then can add them.
Decomposing a fraction means to take it apart, the most basic way to decompose a fraction is to break into unit fractions, thats all I know so far
X/4 = 3/8
multiply both sides by 4 to isolate the variable
x = 3/2
The correct answer is B) 3/2.