SOLUTION: All of the examples show how to solve and graph equations with 1 variable with a number before it and one separate variable, for example: 4x-y=3 (equation1) 3x=y=4 (equation2) I

Algebra ->  Linear-equations -> SOLUTION: All of the examples show how to solve and graph equations with 1 variable with a number before it and one separate variable, for example: 4x-y=3 (equation1) 3x=y=4 (equation2) I      Log On


   



Question 126343This question is from textbook McDougal Littell ALGEBRA 1
: All of the examples show how to solve and graph equations with 1 variable with a number before it and one separate variable, for example:
4x-y=3 (equation1)
3x=y=4 (equation2)
I can solve those, but it confuses me when they ask me to graph problems, such as the one I'm having difficulty with.
6x+2y=16 (equation1)
-2x+y=-2 (equation2)
I solved for y in equation2 and got:
y=2x+2
It is easy to solve for y in equation2, but how do you do the same for equation1?
This question is from textbook McDougal Littell ALGEBRA 1

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
6x%2B2y=16

Add -6x to both sides:
6x-6x%2B2y=-6x%2B16
2y=-6x%2B16

Multiply both sides by 1/2 (or divide by 2, whichever you prefer):

%281%2F2%29%282y%29=%281%2F2%29%28-6x%2B16%29


y=-3x%2B8