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Molodets [167]
3 years ago
7

12x>9 (2x-3)-15 solve for x and show steps please.

Mathematics
2 answers:
monitta3 years ago
5 0
First step is to distribute 9 over 2x-3

12x>18x-27-15

Next is to subtract 18x from both sides of the equation

-6x>-27-15 

Next is to subtract 15 from -27

-6x>-42

Finally just divide -42/-6

x>7

x has to be greater than 7 to satisfy this equation
Verdich [7]3 years ago
4 0

12x > 9(2x-3)-15

distribute the 9

12x > 18x-27 -15

combine like terms on the right side

12x > 18x-42

subtract 18x from both sides

-6x > -42

divide both sides by -6

x = -42 / -6 = 7

x >7

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Read 2 more answers
|2x+3|+9=20. please help. add explanation
Rashid [163]

<u>Answer:</u>

  • The solution of this equation is 'x = 4'.

<u>Step-by-step explanation:</u>

  • |2x + 3| + 9 = 20
  • => 2x + 3 + 9 = 20
  • => 2x + 12 = 20
  • => 2x = 20 - 12
  • => 2x = 8
  • => x = 4

Hence, <u>the solution of this equation is</u><u> 'x = 4'.</u>

Hoped this helped.

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