Simplify 18- 2[x + (x -5)].

28 -4x

Step-by-step explanation:

18 - 2[x + (x -5)] = 18 -2[x + x - 5]

                        = 18 - 2[2x - 5]

                        = 18 +2x *(-2) - 5* (-2)

                       = 18 - 4x + 10

                       = 28 - 4x

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step-by-step explanation:

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