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Mathematics 8 Online
OpenStudy (anonymous):

What is the value of a in the equation a = 2 + 3a + 8? 10 5 −5 −10

OpenStudy (anonymous):

@Daniellelovee

OpenStudy (anonymous):

@MathMusician

OpenStudy (anonymous):

@haleyelizabeth2017 @Janu16

OpenStudy (janu16):

ok first simplify 2+3a+8 to 3a+8

OpenStudy (janu16):

so we have a=3a+10

OpenStudy (anonymous):

wouldn't it be 10 +3a?

OpenStudy (janu16):

do you see where i got 10 from?

OpenStudy (anonymous):

ohh lol

OpenStudy (anonymous):

yep you added them together the 8 and 2

OpenStudy (janu16):

no \[a=3a+10\]

OpenStudy (janu16):

next Subtract 3a3a from both sides

OpenStudy (janu16):

i dont know hwy i wrote 3a twice so ignore

OpenStudy (anonymous):

lol

OpenStudy (anonymous):

a=10?

OpenStudy (anonymous):

idk

OpenStudy (janu16):

\[a−3a=10\] what do yu get?

OpenStudy (anonymous):

so i was right... a=10?

OpenStudy (janu16):

what is a-3

OpenStudy (janu16):

no

OpenStudy (janu16):

a-3 is -2

OpenStudy (anonymous):

idk because i dont know what a is

OpenStudy (janu16):

−2a=10 thats what we have

OpenStudy (janu16):

@77777jeannie77777 doyou understand?

OpenStudy (anonymous):

im thinking 10 is the answer i dont get the explanation!

OpenStudy (anonymous):

you have to find the value of a

OpenStudy (anonymous):

so eiher 5 or -5

OpenStudy (janu16):

I know but you have to subtract a from 3a and when you do that you get -2a Thats the best i can explain

OpenStudy (janu16):

When you divide 10 by -2 than its -5 so answer is -5

OpenStudy (anonymous):

okay lol sooo

OpenStudy (janu16):

hope tht helped. you were just going little ahead than me lol

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