# SOLUTION: how do i sove this problem (step by step) x-y=5 x+2y=7

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Expressions-with-variables Question 137848This question is from textbook prentice hall algebra 1 : how do i sove this problem (step by step) x-y=5 x+2y=7This question is from textbook prentice hall algebra 1 Answer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!1. 2. There are many ways to solve this system of linear equations. I'll use the substitution method. Use equation 1, to solve for x in terms of y. 1. Now use this value and substitute for x in equation 2. 2. Now solve for y. You can work backwards and find x now that you have y. Always check your answers. Use your original equations. 1. True statement. Good answer. 2. True statement. Good answer.