Question

Inecuatia R repede va rog Ex 9

Answer 1

Răspuns:

Explicație pas cu pas:

4x -7(x - 2) < 10 - (3x - 5)

4x - 7x + 14 < 10 - 3x + 5

-3x + 14 < 15 - 3x

14 < 15 adevarat pentru orice x din R

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10 + 3(x - 1) > 2x - 5(3x + 1)

10 + 3x - 3 > 2x -15x - 5

7 + 3x > - 13x -5

13x + 3x >-7 - 5

16x > - 12

x > -12/16

x > - 3/4

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5 - 4(2x + 3) ≥ 1 - 2(3x - 7)

5 - 8x - 12 ≥ 1 - 6x + 14

-8x - 7 ≥ 15 - 6x

-15 - 7 ≥ 8x - 6x

-22 ≥ 2x

-11 ≥ x

x ≤ -11

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12x - (x + 4) ≤ -3 - (x - 2)

12x - x - 4 ≤ -3 - x + 2

11x - 4 ≤ -x - 1

11x + x ≤ 4 - 1

12x ≤ 3

x ≤ 3/12

x ≤ 1/4