Question

2a + (-7) = -9



cuánto es?​

Answer 1

❥Holiwi꧂

2a + (-7) = -9

$2a - 7 + 7 = - 9 + 7$

$2a = - 2$

$\frac{2a}{2} = \frac{ - 2}{2}$

$a = - 1$

Respuesta:

$a = - 1$

Answer 2

Respuesta:

꧁Holi꧂

$2a + ( - 7) = - 9$

$2a - 7 = - 9$

$2a - 9 + 7$

$2a = - 2$

$a = - 1$

Rpt: -1