anonymous
  • anonymous
8x-3=15x+18 A)x=-3 B)x=3 C)x=2.1 D)x=0.9
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
first thing to remember is to get like terms on one side. So to start off, lets subtract 8x from both sides- -3 = 15x - 8x + 18 what is 15x - 8x?
anonymous
  • anonymous
7x?
anonymous
  • anonymous
right!

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anonymous
  • anonymous
so now, its -3 = 7x+18 No subtract 18 from both sides- -3 - 18 = 7x whats -3 - 18?
anonymous
  • anonymous
-21?
anonymous
  • anonymous
Awesome! So- -21 = 7x Now divide what is- -21/7 = x what is -21/7?
anonymous
  • anonymous
x=-3?
anonymous
  • anonymous
Correct! So x = -3 Do you understand?
anonymous
  • anonymous
yea

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