marissaosborne marissaosborne

19-10-2020
Mathematics

contestada

What is the value of a in the equation 3 a plus b equals 54 when b equals 9?

Respuesta :

louisvu12 louisvu12

19-10-2020

Answer:

a= 15

Step-by-step explanation:

Given

3a + b = 54 ← substitute b = 9

3a + 9 = 54 ( subtract 9 from both sides )

3a = 45 ( divide both sides by 3 )

a = 15

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