onny is solving this equation for n : 8 + 3n = 20 . his first step is to subtract 8 from both sides of the equation. why?(1 point)
A. 8 is attached to 3 n by subtraction.
B. he needs to follow the order of operations. .
C. he needs to reverse the order of operations.
D. 8 is the first term in the equation.
CHOOSE ONE OF THE FOLLOWING
A. 8 is attached to 3n by subtraction.
The correct answer is A. 8 is attached to 3n by subtraction.
The correct answer is A. 8 is attached to 3n by subtraction.
To solve the equation 8 + 3n = 20, Johnny needs to isolate the variable n on one side of the equation. In order to do this, he needs to eliminate the 8 on the left side of the equation.
By subtracting 8 from both sides of the equation, Johnny can remove the 8 from the left side and simplify the equation. This step is necessary to isolate the term 3n, which is attached to the 8 by addition.
Once the 8 is subtracted from both sides, the equation becomes 3n = 12. From here, Johnny can continue solving for n by dividing both sides of the equation by 3, which will give him the final solution.