If (a,-5) is a solution to the equations 3a=-2b-7, what is a?

a = 1

Step-by-step explanation:

Given : If (a,-5) is a solution to the equations 3a=-2b-7,

To find : what is a

Solution : We have given

(a,-5) is a solution to the equations 3a=-2b-7,

For a = a and b = - 5.

3a = - 2 (-5) - 7.

3a = 10 - 7.

3a = 3.

On dividing both side by 3.

a = 1

Therefore, a = 1

Answer: 1

Step-by-step explanation: You are starting with (a, b)

(a, - 5) means that when b is - 5, a is a

So substitute-5 into the equation for b and solve for a

3a = - 2b - 7

3a = - 2 (-5) - 7

3a = 10 - 7

3a = 3

a = 1