Question

resolva a equação 3 x + 9 = 5/4 + x

Answer 1

Resposta:

Explicação passo a passo:

3x+9=5/4+x

iguala a 0

3x+9-5/4-x=0

2x+9-5/4=0 (faz mmc de 9 - 5/4)

2x+ (9x4-5)/4=0

2x+(36-5)/4=0

2x+31/4=0

2x=-31/4

x=31/4/2

x=31/4x1/2

x=31/8