SOLUTION: use elimination to solve each system of equations One number added to twice another number is 23. Four times the first number added to twice the other number is 38. What are the

Question 80979This question is from textbook Algebra I
: use elimination to solve each system of equations
One number added to twice another number is 23. Four times the first number added to twice the other number is 38. What are the numbers? This question is from textbook Algebra I

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
X+2Y=23
4X+2Y=38 MULTIPLY THE FIRST EQUATION BY -1 & ADD THEM.
-X-2Y=-23
--------------------
3X=15
X=15/3
X=5 ANSWER.
5+2Y=23
2Y=23-5
2Y=18
Y=18/2
Y=9 ANSWER.
PROOF
4*5+2*9=38
20+18=38
38=38

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