Question

alguem corrigem essas perguntas por favor!​(INEQUAÇAO DO 1 GRAU)

Answer 1

I) 11x - 43 > 9x + 21

11x - 9x > 21 + 43

2x > 64

x > 64

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2

x > 32

II) 10x + 4 ≥ 25 + 7x

10x - 7x ≥ 25 - 4

3x ≥ 21

x ≥ 21

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3

x ≥ 7

III) 13 - 5x < 8x + 3

- 5x - 8x < 3 - 13

- 13x < - 10 . (-1)

13x > 10

x > 10

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13

IV) 14x ≤ 4x - 20

14x - 4x ≤ - 20

10x ≤ - 20

x ≤ - 20

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10

x ≤ - 2

V) -8x + 14 ≥ 27 + 3x

-8x - 3x ≥ 27 - 14

-11x ≥ 13 . (-1)

11x ≤ - 13

x ≤ - 13

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11

VI) 6x - 18 < 0

6x < 0 + 18

6x < 18

x < 18

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6

x < 3

VII) -15x + 40 ≤ 0

-15x ≤ 0 - 40

-15x ≤ - 40 . (-1)

15x ≥ 40

x ≥ 40 (÷5)

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15 (÷5)

x ≥ 8

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3