17. x - y = 9 -x + y = 1 y = 18. 40x, + 30x₂ X 20. 0.2 24 20x₁ + 15x₂ = -14 =

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter6: Fractions
Section6.1: Simplifying Fractions
Problem 37WE
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Linear algebra solve the following
15. y + x = 0
2x + y = 0
x - y = 9
-x + y = 1
17.
16. y = - 4x
y =
18. 40x, +30x₂ =
=
24
20x₁ + 15x₂ = -14
20. 0.2
Transcribed Image Text:15. y + x = 0 2x + y = 0 x - y = 9 -x + y = 1 17. 16. y = - 4x y = 18. 40x, +30x₂ = = 24 20x₁ + 15x₂ = -14 20. 0.2
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