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3( x + 1 ) + 2 ( x - 1 ) = 4x - 12
3( x + 1 ) + 2 ( x - 1 ) = 4x - 12
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Verified answer
Respuesta:
- 13
Explicación paso a paso:
3 ( x + 1 ) + 2 ( x - 1 ) = 4x - 12
3x + 3 + 2x - 2 = 4x - 12
3x + 2x + 3 - 2 = 4x - 12
5x + 1 = 4x - 12
5x - 4x = - 12 - 1
x = - 13