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Johnny solving this equation for n 8 + 3n equals 20 his first step is to subtract 8 from both sides of the equation why ,

he needs to reverse order of operations,
he needs to follow the order of operations,
8 is attached to 3n by subtraction,
8 is the first term in the equation

The reason Johnny subtracts 8 from both sides of the equation is to isolate the term involving n on one side. This step follows the order of operations and allows him to solve for the value of n more easily. By subtracting 8 from both sides, he is essentially removing the constant term on the left side of the equation, leaving only 3n.

Which option

The correct option is: "he needs to follow the order of operations."