How do you solve the system #x+3y=-4# and #2x+6y=5# using substitution?
This systen has no solutions. See explanation for details.
The original system is:
To solve it using substitution we have to calculate one of the variables from one equation to substitute it in the other. We can easily calculate
Now we put the value to the second equation:
If we try to calculate
If we reduce like terms we get:
This equality is of course false which means that the original system has no solutions.