Respuesta :
3a + 9 = 54
Do the opposite operation on 9 so you can get the like terms one side.
3a = 45
Then divide 3 on both side to get the variable by itself.
a = 15
Do the opposite operation on 9 so you can get the like terms one side.
3a = 45
Then divide 3 on both side to get the variable by itself.
a = 15
Answer:
fifteen
Step-by-step explanation:
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