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9 August, 12:40

Use the inequality 18 < - 3 (4x - 2)

Solve the inequality for x.

Show your work.

+1
Answers (1)
  1. 9 August, 13:03
    0
    x > - 1

    Step-by-step explanation:

    Simplify the inequality using the distributive property (multiply the term outside the bracket with each number inside the bracket). Then, isolate 'x' by performing the reverse operations for every number that's on the same side as 'x'. (Reverse operations 'cancel out' a number.)

    18 < - 3 (4x - 2) Expand this to simplify

    18 < (-3) (4x) - (-3) (2) Multiply - 3 with 4x and - 2

    18 < - 12x + 6 Start isolating 'x'

    18 - 6 < - 12x + 6 - 6 Subtract 6 from both sides

    18 - 6 < - 12x ' + 6' is cancelled out on the right side

    12 < - 12x Subtracted 6 from 18 on the left side

    12/-12 < - 12x/-12 Divide both sides by - 12

    12/-12 < x 'x' is isolated. Simplify left side

    -1 < x Answer

    x > - 1 Standard formatting puts variable on the left side
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