Question

resolva a inequaçao 3(x-7)+2x<10-4x

Answer 1

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

3x - 21 + 2x < 10 - 4x

3x + 2x + 4x < 10 + 21

9x < 31

x < 31/9

Answer 2

3(x-7) + 2x < 10-4x
3x - 21 + 2x < 10 - 4x
3x + 2x + 4x < 10 + 21
9x < 31
x < 31/9

S = {x ∈ R /  x < 31/9}

Espero ter ajudado.