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-4x+2=2x-4
4+2=2x+4x
6=6x
1=x
x-5x-10=2x-4
x-5x-2x=-4+10
-6x=6
x=-6/6
x=-1
Comprobacion:
-1 - 5(-1+2) =2(-1)-4
-1-5(1)=-2-4
-1-5=-6
-6 = -6
Espero que sirva! Saludos!