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Mathematics 19 Online
OpenStudy (anonymous):

How to solve system of equations using substitution and elimination

OpenStudy (anonymous):

\[x+y=3, -x+y=-1\]

OpenStudy (anonymous):

x+y=3 -x+y=-1 ----------- add: 2y=2 ... solve it for y & substitute it's value in any original equation - find x. Got it?

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