8) Solve x+y = 10 10x - 2y = 4 Multiply the top equation by 2. Use Elimination or Substitution The y terms will cancel b/c of their opposite signs. Solve X = 2 Substitute back into either original uoen be y = 8 Solution to the system %3D eaker notes

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
Chapter9: Systems Of Linear Equations
Section9.4: The Addition-or-subtraction Method
Problem 21WE
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X+y = 10
10x - 2y = 4
8) Solve
Multiply the top equation by 2.
Use Elimination
or Substitution
The y terms will cancel b/c of their
opposite signs.
Solve
X = 2
Substitu te back into either original
eq uation.
y = 8
Solution to the system
eaker notes
6
8
Transcribed Image Text:X+y = 10 10x - 2y = 4 8) Solve Multiply the top equation by 2. Use Elimination or Substitution The y terms will cancel b/c of their opposite signs. Solve X = 2 Substitu te back into either original eq uation. y = 8 Solution to the system eaker notes 6 8
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