Respuesta :

Well, the first thing you would do is distributive property:
-54x-30-3x+4x=-408+x

The, you would combine all like terms, so all the x values and all the known values: -54x=-378

You would then divide both sides by -54:
-54x/54 = -378/-54    =

x= 7               HOPE IT HELPS!!!!!                             

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