None of the given reasons are accurate.
The actual reason why Jonny subtracts 8 from both sides of the equation is to isolate the variable, n, on one side of the equation. By subtracting 8 from both sides, the equation becomes:
8 - 8 + 3n = 20 - 8
This simplifies to:
3n = 12
Now, Jonny can solve for n by dividing both sides of the equation by 3:
3n/3 = 12/3
This simplifies to:
n = 4
Subtracting 8 from both sides of the equation is a step in solving for n, but the reasoning behind it is to isolate the variable, not for any of the given reasons.
Jonny is solving this equation for n 8+3n=20 his first step is to subtract 8 from both sides of the equation why
8 is attached to 3n by subtraction
8 is the first term in the equation
He needs to reverse the order of operations
He needs to follow the order of operations
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