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OpenStudy (anonymous):
Solve using matrices. x – 3y + z = 10 x + y – 3z = -10 -3x – y + z = 2
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OpenStudy (anonymous):
Use elimination process to eliminate the x from the first two equation, then eliminate x from the second and third equation. after that you only have 2 variables. Then do the same process to eliminate one of the variable. Is it help ?
OpenStudy (anonymous):
What is your meant b?
OpenStudy (anonymous):
no. You have to solve for all variables. B is not answer
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