Respuesta :

awright112902
12x+4-7x=6+5x-2
12x-7x= 5x      You can do this because they are common with each other.
 6-2=4              You can do this because they are common with each other.
New equation is now: 5x+4=4+5x
+4+4 =8
New equation is now: 5x=8+5x
5/5=0
New equation is now: x=8+x

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