SOLUTION: Solve 3(-7+r)=-36

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Question 1013041: Solve
3(-7+r)=-36
Found 3 solutions by macston, Pinksparkles, fractalier:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
3(-7+r)=-36
=21+3r=-36
3r=-15
r=-5
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Answer by Pinksparkles(13) About Me  (Show Source):
You can put this solution on YOUR website!
3(-7+r)=-36
Use the distributive property.
1) 3*-7=-21
3*r=3r
-21+3r= -36
2) Add 21 to both sides.
-21+21=0 (it's canceled out) -36+21=-15
Now, we have 3r=-15
3) Divide by the number in front of the variable
3r=-15
3r/3=r= -15/3=-5
4) r=-5

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
From
3(-7+r)=-36
we can either distribute or divide by 3 first...let's do that and get
-7 + r = -12
Now add 7 and get
r = -5