Question

Find the value of 4v-3 given that - 13v-8=5.Simplify your answer as much as possible.

Answer 1

You have the following equation:

`-13v-8=5`

So first you must solve for the variable "v", because you need to know its value. This is:

`\begin{gathered} -13v-8=5 \\ -13v=5+8 \\ -13v=13 \\ v=(13)/(-13) \\ v=-1 \end{gathered}`

Sinve you need to find the value of this expression:

`4v-3`

You just need to substitute the value of "v" calculated above, into the expression and the evaluate. You get that its value is:

`4v-3=4(-1)-3=-4-3=-7`