Answer
The values are x=3, y=2
Work Step by Step
To solve
2x + 3y = 12
(-3x +y = -7 )$\times$ -3
2x + 3y = 12
9x -3y = 21 --> add the two equations
11x = 12+21
11x = 33
x = 3
To solve for y
2(3)+3y = 12
6 + 3y = 12
3y = 12-6
3y = 6
y = 2
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 7 - Exponents and Exponential Functions - 7-2 Multiplying Powers With the Same Base - Practice and Problem-Solving Exercises - Page 431: 59
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