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OpenStudy (anonymous):
solve using the substitution method 2s-3t=120 -14s+91t=-840
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OpenStudy (mathstudent55):
The substitution method is where you solve one equation for one variable. Then you substitute what that variable equals in the other equation. My suggestion to start solving this system is solve the first equation for s. Try it and post what you get.
OpenStudy (anonymous):
okay im lost
OpenStudy (anonymous):
it was a typo sorry
OpenStudy (anonymous):
ty
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