For this case we have the following system of equations:

To solve, we clear "x" from the second equation:

We substitute "x" in the first equation:

We clear the value of the variable "y":

We look for the value of the variable "x":

Thus, the solution of the system is given by:

Answer:

Option D
Answer:
x = 5.6
Step-by-step explanation:
5x - 7 = 21
5x = 28
x = 5.6
Can I geet brainliest
Hello,
A=(3,-4)
B=(-2,-1)
m=(-4+1)/(3+2)=-3/5
==============