Respuesta :

AL2006

You said that                       -7  =  3x - 1

Add ' 1 ' to each side:          -6  =  3x

Divide each side by  3 :       -2  =   x
add one to each side so... -7+1=3x-1+1.. the ones cross out so... -6=3x
divide each side by three to isolate x so.... -6/3=3x/3 the threes cross out so.. -2=x
the answer is -2=x

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