How to solve multi-step equations

 Encontrar el valor de x.

1. 3(x+5)=x-27           check

3x+15=x-27            3(x+5)=x-27

-1x+15=-1x-27       3(-21+5)=-21-27

2x+15=-27               3(-16)=-48

    -15   -15                -48=-48

2x  =  -42

2         2

X = -21 

 Poder encontrar el valor de x uno tiene que utilisar la propiedad distributiva.  Multiplicar por el numero que este cerca de parentesis por todos los numeros o variables que esten adrento del parentesis.  Un ejemplo: 3(x+5) = x - 27 en forma distributive es 3x+15=x-27.  Despues tienes que cojer el numero mas pequeño que tenga x, para ponerlo inverso asi 1x en inverso es -1x. Despues hacer una linea en el medio del signo de =.  Despues utilisamos lo apuesto de 15 lo cual es -15, uno lo tiene que ponerlo de los dos lado para balanciarlo.  Despues divider            2 en -42 lo cual es -21.  Entoces x = -21.   

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