Question

(x+30) + (x+25) = 7x

Answer 1

Explicação passo-a-passo:

(x+30) + (x+25) = 7x

x+30+x+25=7x

x+x+30+25=7x

2x+55=7x

2x-7x=-55

-5x=-55

x=-55/-5

x= 11

Resposta :

S={ 11}