Explicación paso a paso:
- 4( - a + 4 ) - 7( a - 2 )
( 4a + 16 ) - ( 7a - 14 )
4a - 7a + 16 + 14
-3a + 30
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Explicación paso a paso:
- 4( - a + 4 ) - 7( a - 2 )
( 4a + 16 ) - ( 7a - 14 )
4a - 7a + 16 + 14
-3a + 30