Testing123guest
  • Testing123guest
help plz
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Testing123guest
  • Testing123guest
Seven subtracted from 3 times a number is equal to 9 more than 5 times the number. What is the number?
texaschic101
  • texaschic101
3x - 7 = 5x + 9 --- subtract 3x to both sides -7 = 5x - 3x + 9 -- subtract 9 from both sides -9 - 7 = 5x - 3x -- simplify -16 = 2x -- divide both sides by 2 -16/2 = x -8 = x check.. 3x - 7 = 5x + 9 3(-8) - 7 = 5(-8) + 9 -24 - 7 = -40 + 9 -31 = -31 (correct)
texaschic101
  • texaschic101
questions ?

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Testing123guest
  • Testing123guest
so the answer is -31
texaschic101
  • texaschic101
no....your number (x) = -8
Testing123guest
  • Testing123guest
oh okay the answer is -8
texaschic101
  • texaschic101
I was just subbing in -8 into the equation to check it...the answer is -8
Testing123guest
  • Testing123guest
cool thz
texaschic101
  • texaschic101
anytime :)
Testing123guest
  • Testing123guest
i got a 100%
texaschic101
  • texaschic101
sweet...time to celebrate :)

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