it is simple
order of operations is parenthasis, exponents, multiplication division( whichever of those 2 comes first) addition subtraction (same as multipling and dividing)
so first is whats in the parentasies which means:
1.) 12 divided by 4 =3
2.) 3-3=0
3.) there is a 2 next to the parenthasies so that means the 2 is multiplied by what the answer to what was in the parenthasies so
0 times 2=0
4.) which means there is nothing left but the 3 which therfore equals 3
hope this helped
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