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OpenStudy (anonymous):
Solve, using linear combination. 3x + y = 4 2x + y = 5 (Points : 4) (–1, 7) (0, 4) (–3, 12) (–3, 13)
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OpenStudy (anonymous):
subtract both the equations..u get x=-1
OpenStudy (anonymous):
2nd eqn - 1st eqn.
OpenStudy (anonymous):
-1 positive 7
OpenStudy (anonymous):
put in anyone eqn. and obtain y
OpenStudy (anonymous):
yes ..u r right .!
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