Question

If "a" is a solution to the equation 5 + 6a
= 7a-3, then what is the value of 2a?

Answer 1

The value of 2a will be: 16

Explanation:

Given the equation

`5 + 6a = 7a-3`

subtract 5 from both sides

`5+6a-5=7a-3-5`

`6a=7a-8`

`-a=-8`

Divide both sides by -1

`(-a)/(-1)=(-8)/(-1)`

`a=8`

As we know that
`a=8` is the solution to the equation.

Hence, the value of 2a will be:

`2a = 2(8)` ∵
`a=8`

`= 16`

Therefore, the value of 2a will be: 16