anonymous
  • anonymous
Solve the equation -x/3 = 27 & 5c-9=8-2c Help?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
81
anonymous
  • anonymous
Is that all you need to do for the first one?
anonymous
  • anonymous
Oooooooh

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anonymous
  • anonymous
Thank you thats a lot easier than i thought
anonymous
  • anonymous
How do i solve? I'm slightly confused do i need to subtract?
texaschic101
  • texaschic101
do you understand any of these problems....I mean about how to do them ?
anonymous
  • anonymous
Yeah second one! I really don't understand how to go about solving equations like this.
texaschic101
  • texaschic101
even the first one ? Do you understand how it was done ?
anonymous
  • anonymous
The first makes sense
texaschic101
  • texaschic101
5c - 9 = 8 - 2c ... we want to get the c terms on one side and everything else on the other side...and what you do on one side of the equal sign, you have to do on the other side. So first we will add 2c to both sides 5c - 9 + 2c = 8 - 2c + 2c -- now we combine like terms 7c - 9 = 8 ...see how the 2c's on the right side cancelled out now we will add 9 to both sides 7c - 9 +9 = 8 + 9 -- combine like terms 7c = 17....now we need c by itself, so we divide both sides by 7 (7/7)c = 17/7....the 7/7 turns into 1 and 1c is just c.... so c = 17/7 or in decimal form = 2.43
anonymous
  • anonymous
Thank you!! im taking notes
anonymous
  • anonymous
did u solve the second one?

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