SOLUTION: substitution 5x+2y=7 -2x+2y=-14

SOLUTION: substitution 5x+2y=7 -2x+2y=-14

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Question 838390: substitution 5x+2y=7 -2x+2y=-14
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
From eq. 1,

Substitute into eq. 2,

Then,

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