Question

es para las 7:00ayuda​

Answer 1

$3z + 0.5 - z = 4.5$

$3z + 0 - z = 20$

$3z - z = 20$

$2z = 20$

$z = 10$

$a + 3a + 8 - 2a - 10 = 0$

$a + 3a - 2a = 10 - 8$

$2a = 2$

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

$a = 1$

Answer 2

Respuesta:

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