Question

please help me i am so confused on this and i know it says high school its fake im in middle school so please help.

Answer 1

Answer: Subtract -3 from both sides, r = 0

Explanation:

When solving an algebraic equation like this one, we want to isolate the variable we are solving for. In this case, that is r.

To do so, we will subtract -3 from both sides (adding 3 will cancel out the -3 on the left, leaving r alone).

-3 + 3 = 0

r = 0