Question

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

Answer 1

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: $\frac{3r}{3} \\ \\ = \frac{-15}{3}$

$Answer: r = -5$

Good luck on your assignment and enjoy your day!

~$MeIsKaitlyn:)$