Respuesta:
a) 8x-12x-8x-20x+5x
8x-12x-8x-15x
-4x-7x
-11x
b)-6a+10a-7a+a
4a-6a
-2a
c)500x-750x+250x
500x-500x
0x
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Respuesta:
a) 8x-12x-8x-20x+5x
8x-12x-8x-15x
-4x-7x
-11x
b)-6a+10a-7a+a
4a-6a
-2a
c)500x-750x+250x
500x-500x
0x