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c) 
3x-9 < 3x-7

c) 3x9<3x7 3 x-9<3 x-7

Full solution

Q. c) 3x9<3x7 3 x-9<3 x-7
  1. Subtract 3x3x: Subtract 3x3x from both sides to isolate the constant terms.\newline3x93x<3x73x3x - 9 - 3x < 3x - 7 - 3x
  2. Simplify inequality: Simplify both sides of the inequality.\newline9<7-9 < -7
  3. Final solution: Since there are no xx terms left, the inequality simplifies to a statement that is always true. This means that the inequality is true for all values of xx.

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