Question

What is the value of a in the equation 3a+ b=54 when B=9?

Answer 1

The value of a would be 15

Answer 2

The answer is:

a = 15

Work/explanation:

Plug in 9 for B :

`\sf{3a + b =54}`

`\sf{3a + 9 =54}`

Subtract 9 from each side:

`\sf{3a=45}`

Divide each side by 3:

`\sf{a=15}`

Therefore, the answer is a = 15.