Resposta:
> 2(60-x)=60+2x/3
>120-2x=60+2x/3
>360-6x=180+2x
>360-180=2x+6x
>180=8x
>180/8=x
90/4=x
Explicação passo a passo:
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Resposta:
> 2(60-x)=60+2x/3
>120-2x=60+2x/3
>360-6x=180+2x
>360-180=2x+6x
>180=8x
>180/8=x
90/4=x
Explicação passo a passo: