Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 3 - Section 3.1 - Systems of Linear Equations in Two Variables - 3.1 Exercises: 58


$x=0$ $y=0$

Work Step by Step

If we multiply the second equation by $3$, then we add the two equations, we can eliminate the $y$ from the system: $3x+3y=0$ $-2\times3x-3y=0\times3$ $3x-6x=0$ $x=0$ $3(0)+3y=0$ $y=0$ We have to check, if the solution is right. Substitute $x$ with 0 and $y$ with 0: $3(0)+3(0)=0$ $\checkmark$ $-2(0)-0=0$ $\checkmark$
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