Value of 3v-7 given that 5v + 9=4

-10 is the answer.

Step-by-step explanation:

We have given equation:

5v + 9=4

We have to find the value of 3v-7.

To find the value of v we use the given equation.

5v + 9=4

5v = 4-9

5v = - 5

v = - 1

Putting v = - 1 in the equation 3v-7 to get the required answer.

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

3v-7 = - 3-7

3v-7 = - 10 is the solution.

The solution is - 10

Step-by-step explanation:

We first solve for v in the equation;

5v + 9 = 4

5v = 4 - 9

5v = - 5

v = - 1

Finally, we substitute v = - 1 in the given expression;

3v - 7

3 (-1) - 7 = - 10