Respuesta :
Answer:
a = -5
Step-by-step explanation:
22 = 7 -3a
(subtract 7)
15 = -3a
(divide -3)
a = -5
OR
22 = 7 -3a
(add 3a)
3a + 22 = 7
(subract 22)
3a = -15
(divide 3)
a = -5
Answer:
a = -5
Step-by-step explanation:
22 = 7 -3a
(subtract 7)
15 = -3a
(divide -3)
a = -5
OR
22 = 7 -3a
(add 3a)
3a + 22 = 7
(subract 22)
3a = -15
(divide 3)
a = -5