Question

GO

What is the value of a in the equation 3 a+b=54, when b = 9?
O 15
O 18
O 21
O27

Answer 1

a = 15

Explanation:

3a + b = 54 ← substitute b = 9

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

3a = 45 ( divide both sides by 3 )

a = 15

Answer 2

`\Large\maltese\underline{\textsf{A. What is Asked}}`

What is the value of a in the equation 3a+b=54, if b=9?

`\Large\maltese\underline{\textsf{B. This problem has been solved!}}`

Put in 9 for b.

`\bf{3a+9=54}` | subtract 9 on both sides

`\bf{3a=45}` | divide the entire equation by 3

`\bf{a=15}`

`\cline{1-2}`

`\bf{Result:}`

`\bf{\bigcirc 15}`

`\LARGE\boxed{\bf{aesthetic\\ot1\theta\ell}}`