Aset of equations is given below:

equation s: y = x + 9
equation t: y = 2x + 1

which of the following steps can be used to find the solution to the set of equations?

x = 2x + 1
x + 9 = 2x
x + 1 = 2x + 9
x + 9 = 2x + 1

Option D is correct

Step-by-step explanation:

Given the system of equation:

Equation S: y = x + 9  

Equation T: y = 2x + 1

We have to find the following steps can be used to find the solution to the set of equations.

Equate the given equation S and T to solve for x,  we have;

Therefore, the following steps can be used to find the solution to the set of equations is: