How do you solve the following system using substitution?: #x=4-4y, -x+2y=2#
1 Answer
Nov 5, 2015
y = 1
x=0
Explanation:
First replace all values of x in the second equation with
Which gives you:
Then solve using algebra:
Distribute the
Combine all all the y values
Add 4 to both sides
Finally divide both sides by 6
Thus your y value is equal to 1. To find the x value, substitute this 1 into one of the equations for all y's
Then simplify
thus x is equal to 0
You could also check your answer by substituting both values into the other equation
Your answers are correct!