SOLUTION: Find the unique pair​ (x,y) that satisfies both equations simultaneously 2x+5y=13 and 7x-15y=26

Algebra ->  Linear-equations -> SOLUTION: Find the unique pair​ (x,y) that satisfies both equations simultaneously 2x+5y=13 and 7x-15y=26      Log On


   

Question 1094769: Find the unique pair​ (x,y) that satisfies both equations simultaneously
2x+5y=13 and 7x-15y=26
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
2x+5y=13 and 7x-15y=26

Same system:
6x+15y=39 and 7x-15y=26


%286x%2B15y%29%2B%287x-15y%29=39%2B26
.
.
.

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
There is a bunch of lessons in this site on solving systems of two linear equations in two unknowns (Algebra-I curriculum)
    - Solution of the linear system of two equations in two unknowns by the Substitution method
    - Solution of the linear system of two equations in two unknowns by the Elimination method
    - Solution of the linear system of two equations in two unknowns using determinant
    - Geometric interpretation of the linear system of two equations in two unknowns
    - Solving word problems using linear systems of two equations in two unknowns

    - Using systems of equations to solve problems on tickets
    - Using systems of equations to solve problems on investment
    - Two mechanics work on a car
    - The Robinson family and the Sanders family each used their sprinklers last summer
    - System of equations helps to solve a problem for the Thanksgiving day

    - OVERVIEW of lessons on solving systems of two linear equations in two unknowns

Also,  you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Systems of two linear equations in two unknowns".


Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.