Question

7x−20+3x≥120+5x me ajudeeem ​

Answer 1

Resposta:

x≥28

Explicação passo a passo:

7x+3x-20≥120+5x

10x-20≥120+5x

10x-20+20≥120+5x+20

10x≥5x+140

10x-5x≥5x+140-5x

5x≥140

5x/5≥140/5

x≥28