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Linear Algebra
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OpenStudy (anonymous):
3a - 3b = -15 -3a - 3b = -3
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OpenStudy (adamaero):
What method do you want to use? Substitution or elimination?
OpenStudy (adamaero):
I guess I should say which*
OpenStudy (anonymous):
substitution
OpenStudy (adamaero):
1st step: Solve one equation for one variable.
OpenStudy (anonymous):
3a - 3b = -15 -3a - 3b = -3 ________________ -6b = -18 b= 18/6, b=3 put this value in any eq i will use the first 3a - 3(3) = - 15 3a=-15+9, 3a=-6 a=-2 this method would be more easier
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