Hey there!
You can solve this problem by doing the distributive property (this time you would be going from the back to the front
[tex] \\ 7(6r) = 42r \\ Just \\ Plug \\ "r" \\ with \\ the \\ 6 \\ Answer: 42r [/tex]
Good luck on your assignment and enjoy your day!
~[tex]LoveYourselfFirst:)[/tex]