Respuesta:
1-
20x-10x+6x-20x=12+20
-4x = 32 / 32 dividido entre 4 = 8
( x = 8 )
2-
12x-10x = 12+10
2x =22 / 22 dividido entre 2 = 11
( x = 11 )
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Respuesta:
1-
20x-10x+6x-20x=12+20
-4x = 32 / 32 dividido entre 4 = 8
( x = 8 )
2-
12x-10x = 12+10
2x =22 / 22 dividido entre 2 = 11
( x = 11 )