Question
Jonny 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)
Responses
He needs to follow the order of operations.
He needs to follow the order of operations.
8 is attached to 3n by subtraction.
8 is attached to 3 n by subtraction.
He needs to reverse the order of operations.
He needs to reverse the order of operations.
8 is the first term in the equation.
The correct answer is: He needs to reverse the order of operations.
The correct answer is "He needs to follow the order of operations."
When solving an equation, it is important to follow the order of operations to ensure that each step is done correctly. In this case, the equation is 8 + 3n = 20.
To isolate the variable n on one side of the equation, Jonny needs to get rid of the constant term 8 on the same side as the variable.
By subtracting 8 from both sides of the equation, Jonny is using the subtraction property of equality. This step allows him to simplify the equation and solve for n.
Remember, the goal is to isolate the variable and the order of operations, which specifies the sequence in which mathematical operations are performed, helps to determine the correct steps to solve the equation.