Question

1. Resolva as inequaçoes do 1 grau
a)2X + 3 > 13

b)3X - 2 < 22

c)8X - 1 > 71

d)10X + 5 < 95
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Answer 1

Explicação passo-a-passo:

Letra a) 2x +3 > 13 => 2x-10 > 0 => x > 10/2 => x > 5

Letra b) 3x -2 < 22 => 3x -24 < 0 => x < 24/3 => x < 8

Letra c) 8x - 1 > 71 => 8x -72 > 0 => x > 72/8 => x > 9

Letra d) 10x + 5 < 95 => 10x -90 < 0 => x < 90/10 => x < 9

Answer 2

a)2X + 3 > 13

2x > 13 - 3

2x > 10

x > 10/2

x > 5

b)3X - 2 < 22

3x < 22 + 2

3x < 24

x < 24/3

x < 8

c)8X - 1 > 71

8x > 71 + 1

8x > 72

x > 72/8

x> 9

d)10X + 5 < 95

10x < 95 - 5

10x < 90

x < 90/10

x < 9