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OpenStudy (anonymous):
1. Solve, using the substitution method. j + k = 3 j – k = 7 im lost please help
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TheSmartOne (thesmartone):
j+k=3 j-k=7 right?
TheSmartOne (thesmartone):
BTW Welcome to Open Study!!
TheSmartOne (thesmartone):
@helpdummy
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