Can someone help me with this math problem?

-3b+9=9-3b

I dont have any notes on these. Could someone let me know what you get and how you got your answer? Thank you for your help by the way.

Answer #1

Yes thats the proper way to do it, I remember now. ^.^ cheers x0yercute

been years since I did a math problem like this.

Answer #2

Oh okay. Thank you. I just want to know how to do these because we might have a test next week, and also I have a whole worksheet of them to do tonight. Yay. Lol, but thanks!

:)

Answer #3

-3b+9=9-3b Because you have ‘b’ on both sides of the equation, you need to do something to both sides of the equation. -3b+9=9-3b so because you have a positive 9 on both sides, subtract 9 from each side

   -9  -9

-3b=-3b - by adding the opposite of +9 to both sides, i figured out that b is equal to b, thus b could be any number

Answer #4

-3(2)=-6 -6+9=9-6 3=3

i always did things differently than other people so i may not be the best person for doing it the right way, but the answer should be correct

Answer #5

b=2

Answer #6

yahh sorry it got messed up somehow when i posted it. likee you can do a “check” for it. someone said 2. whch would be right. you can plug it in. but you can also plug in another number, like 4. (-3 x 4)+9=9-(-3 x 4) 12+9=9–12—>when you see – (subtracting a negative number) – means ADD. an easy way to remember this is if you take one of the minus signs andput it on top of the other minus sign it forms a plus sign. anyways, back to business. so, 12+9=9+12 21=21 trust me any number works. i am the top female math student of my school and won awardss.

Answer #7

ok well. -3b+9=9-3b. what you need to do is find out what b equals. so, you undo each side so you can get the variable (b) on one side. sounds hard, but it’s simple when you think of “unplugging.” *WHATEVER YOU DO, MAKE SURE YOU DO IT TO THE OTHER SIDE. IF YOU DO SOMETHING ON THE LEFT SIDE OF THE EQUAL SIGN, DO IT ON THE RIGHT SIDE OF THE EQUAL SIGN.

-3b+9=9-3b

   -9 -9

-3b=-3b


-3 -3 b=b so b is any number.

Answer #8

Okay. Um could you show mw how you did that please? Thanks btw.

Answer #9

Wow you explain it better on the computer than my teacher does to my face. Lol. Thanks guys. :)

Answer #10

so the answer is b is anything? Also, what are the lines for? Dividing? Lol, sorry Im not good at math.

Answer #11

yuupp(; no problem! im a math geek but not like a geek geek. 100% girly girl who likes math?hahaa. thats me.

Answer #12

np

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