Question

2x + 5 < -3x +40 me ajudem, fazendo favor?​

Answer 1

2x + 5 < -3x + 40

2x +3x < 40 - 5

5x < 35

x < 7

Answer 2

2x + 5  <  - 3x + 40

2x + 3x  <  40 - 5

5x  <  35

x  <  35/5

x  <  7

{  x  ∈  R |  x  <  7 }