Question

-15.6 = -3.9r please include an explanation of how you got your answer :) thanks

Answer 1

Here is the equation:

$-15.6 = -3.9r$

Since both decimals are negative, the answer will be positive.

• Negative times Negative = Positive

Divide both sides by -3.9 to leave the variable alone:

$-15.6 \div -3.9 = -3.9r \div -3.9 \\ 4 = r$

r is equal to 4 → r = 4