Para saber cual es el valor de "a" , desarrollamos:
5a + 7 = -13
5a = -13 - 7
5a = - 20
a = -20/5
a = - 4
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5a + 7 = - 13
5a = - 13 - 7
5a = - 20
a = - 20/5
a = - 4
Respuesta.
a = - 4
Para saber cual es el valor de "a" , desarrollamos:
5a + 7 = -13
5a = -13 - 7
5a = - 20
a = -20/5
a = - 4