substitution is an easy process to solve the linear equation and find x and y points.
in order to start you have solve for one variable, you decide. |
3x+4y = -4
x+2y = 2
now make the lower equation equal to x. (choose a variable that is unguarded or without a number)
now you have x = -2y+2 plug this into the other equation. solve
accordingly
3(-2y+2)+4y = -4
-6y+6+4y = -4
-2y+6 = -4
-2y = -10
y = 5
the final part of the process is to plug the solution in.
x = -2y+2
x = -2(5)+2
x = 8
your point is now (-8,5)
your answer should be written as a point.