Question

20+19-5x=7x+31+2x por favor me ajuda​

Answer 1

Explicação passo-a-passo:

20+19-5x=7x+31+2x

39 - 5x = 9x + 31

-5x -9x = 31-39

-14x = -8

x = 8/14

x = 0,5714

Answer 2

Resposta:

$20 + 19 - 5x = 7x + 31 + 2x \\ 39 - 5x = 9x + 31 \\ - 14x = - 8 \\ 14x = 8 \\ x = 8 \div 14 \\ x = 0.57$