SOLUTION: Solve and check by using substitutions mehtod Not sure if this is right y=5x 2x+y=28 This is what I did y=5x y=5x 2x+5x=28 y=5-4

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: Solve and check by using substitutions mehtod Not sure if this is right y=5x 2x+y=28 This is what I did y=5x y=5x 2x+5x=28 y=5-4       Log On

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 Question 201998This question is from textbook Algebra Structure and Method : Solve and check by using substitutions mehtod Not sure if this is right y=5x 2x+y=28 This is what I did y=5x y=5x 2x+5x=28 y=5-4 7x=28 y=1 answer is (4,1) x=4 Also solve and check using substitution method. I get so far and am confused x+3y=23 x=23-3y 3x-2y=3 3(23-3y) now i don't get itThis question is from textbook Algebra Structure and Method Answer by rfer(12660)   (Show Source): You can put this solution on YOUR website!most of what you have done looks ok, but just need to do a little more start at 2x+5x=28 solve 7x=28 x=4 ---------------------substitute 4 for x in the y=5x y=5x y=5(4) y=20 (4,20) -------------------------- 2nd problem, starting where you stopped 3(23-3y)-2y=3 69-9y-2y=3 69-11y=3 -11y=-69+3 11y=69-3 11y=66 y=6 --------------------------- 3x-2y=3 3x-2(6)=3 3x-12=3 3x=15 x=5 (5,6) when you are working these make sure you keep track of all parts of the equations. Then just work through one step at a time.