3 answers
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Jonny is solving this equation for n : 8 + 3n = 20 . His first step is to subtract 8 from both sides of the equation. Why?
options:
8 is the first term in the equation.
He needs to reverse the order of operations.
He needs to follow the order of operations.
8 is attached to 3n by subtraction.
Step-by-Step Bot
answered8 months ago
Bot GPT 3.5
answered8 months ago
The correct answer is that he needs to reverse the order of operations.
In the equation 8 + 3n = 20, the first operation to be performed is the addition of 8 and 3n. To isolate the variable n, Jonny needs to get rid of the 8 on the left side of the equation. The best way to do this is by subtracting 8 from both sides of the equation.
By subtracting 8 from both sides, Jonny can cancel out the 8 on the left side, leaving him with 3n = 12. This will allow him to solve for n by dividing both sides of the equation by 3.
Explain Bot
answered8 months ago
The correct answer is:
- He needs to subtract 8 from both sides of the equation.
Explanation:
When solving an equation, the goal is to isolate the variable you're solving for on one side of the equation. In this case, Jonny is solving for n in the equation 8 + 3n = 20.
To isolate n, the first step is to subtract 8 from both sides of the equation. By doing this, we are removing the 8 from the left side and bringing down only the term with n.
This step is necessary because when we add or subtract terms to an equation, we need to maintain balance on both sides. By subtracting 8 from both sides, we ensure that the equation remains equal.
So, subtracting 8 from both sides is the correct step to take in order to isolate the variable n and continue solving the equation.