Question

What is the solution to this system of equations? {2x+4y=227x+y=12{2x+4y=227x+y=12?

Answer 1

For this case we have the following system of equations:
 $2x + 4y = 227 x + y = 12$
 Rewriting we have:
 $2x + 4y = 227 -4x - 4y = -48$
 Adding equations we have:
 $-2x = 179$
 Clearing x:
 $x = - 179/2 x = -89.5$
 Then, we look for the value of y:
 $x + y = 12 y = 12 - x y = 12 - (-89.5) y = 12 + 89.5 y = 101.5$
 Answer:
 The solution to the system of equations is:
 x = -89.5
 y = 101.5