SOLUTION: 2m + n = 1 m - n = 8

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Question 180671This question is from textbook Algebra 1
: 2m + n = 1
m - n = 8
This question is from textbook Algebra 1

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
There are 2 equations and 2 unknowns,
so it is solvable. If there were more
unknowns than equations it would be
unsolvable
(1)
(2)
Just add the equations


Divide both sides by


As long as I do the same thing to both
sides, the equation is still true.
Put back into (2)

Subtract from both sides


Multiply both sides by

The solution is and

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