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Ayuda xfa vor5x - ( x + 7 ) = 8 + ( 3x - ( 2 + x ))?

Ayuda xfa vor 5x - ( x + 7 ) = 8 + ( 3x - ( 2 + x )).

En resumen

5x - ( x + 7 ) = 8 + [3x - ( 2 + x )] 5x - x - 7 = 8 + [3x - 2 - x] 4x - 7 = 8 + [2x - 2] 4x - 7 = 8 + 2x - 2 4x - 7 = 2x + 6 4x - 2x = 6 + 7 2x = 13 x = 13 / 2.

Mejor respuesta

Jenniferpila199
0

5x - ( x + 7 ) = 8 + [3x - ( 2 + x )]

5x - x - 7 = 8 + [3x - 2 - x]

4x - 7 = 8 + [2x - 2]

4x - 7 = 8 + 2x - 2

4x - 7 = 2x + 6

4x - 2x = 6 + 7

2x = 13

x = 13 / 2.