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Solve equation? 3(-7+r)=-36

User John Kenn
by
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1 Answer

1 vote
Hey there!

First we need to add by
21 on each of your sides

Like:
3r - 21 + 21 \\ \\ -36 +21

This gives us:
3r = 15

Now we have to
divide by
3 on each sides

Like:
(3r)/(3) \\ \\ = (-15)/(3)


Answer: r = -5

Good luck on your assignment and enjoy your day!

~
MeIsKaitlyn:)
User Whyyie
by
8.0k points

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