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9) 6x + 8 y = -22 y =-5 10) -7x +2y = 18 6x+ 6y = 0 11) 7x+ 2y = -19 -x+ 2y = 21 12) 3x– 5y = 17 y =-7 13) -7x + 4y = 24 4x– 4y = 0 14) 4x - y = 20 -2x – 2 y = 10

9) 6x + 8 y = -22 y =-5 10) -7x +2y = 18 6x+ 6y = 0 11) 7x+ 2y = -19 -x+ 2y = 21 12) 3x– 5y = 17 y =-7 13) -7x + 4y = 24 4x– 4y = 0 14) 4x - y = 20 -2x – 2 y = 10

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question

System of Linear Equation in two Variables

Solve each system by substitution:

10) -7x+ 2y = 18 6.x + 6y = 0 9) 6x + 8 y = -22 y =-5 11) 7x+2y = -19 -x+2y = 21 12) 3x– 5y = 17 y =-7 13) -7x+4y = 24 4x– 4y = 0 14) 4x - y= 20 -2x – 2 y = 10
Transcribed Image Text:10) -7x+ 2y = 18 6.x + 6y = 0 9) 6x + 8 y = -22 y =-5 11) 7x+2y = -19 -x+2y = 21 12) 3x– 5y = 17 y =-7 13) -7x+4y = 24 4x– 4y = 0 14) 4x - y= 20 -2x – 2 y = 10
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