Answer: r = 7
Step-by-step explanation:
Subtract 12 from both sides to isolate the r variable. You have -42 = -6r. Divide both sides by -6 to get r by itself and you get r = 7. Verify by substituting 7 as the r value and solving the equation.
Answer:
r=7
First subtract 12 from both sides
Now you have -42=-6r
Next divide each side by -6
Now you have 7=r
And that is your answer
