Question

×-1 - ×-3=-1 valor de x
6 2​

Answer 1

$\frac{x-1}{6} - \frac{x-3}{2} = - 1$

$\frac{2(x-1)-6(x-3)}{6(2)} = -1$

$\frac{2x-2 - 6x + 18}{12} = - 1$

$\frac{-4x+16}{12} = - 1$

$-4x + 16 = -12$

$16 + 12 = 4x$

$28 = 4x$

$x =7$

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eso es todo :D

SALUDOS!!