Question

Calcule e classifica as inequacoes. a) 2×+3×>-4. b) (2×-1)-(3×+2)+2>2×-2

Answer 1

Resposta:

a) 2x+3x>-4

5x>-4

x>-4/5

x>-0,8(-1)

x>0,8

b) (2x-1)-(3x-2)+2>2x-2

2x-1-3x-2+2>2x-2

2x-3x-2x>-2+1+2-2

-3x>1

x>1/3

x>-1,333....(-1)

x>1,333...

ambas são inequações de 1 grau.