14-01-2021
Mathematics

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(2x + 4) — (-x + 5)
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15-01-2021

(2x + 4) - (-x + 5)
= (2x + 4) -1(-x + 5)
= 2x + 4 + x - 5
= 2x + x + 4 - 5
= 3x - 1.

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