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Mathematics 15 Online
OpenStudy (anonymous):

When solving the system x + 2y = 9 and x - y = 6, which expression could be substituted for x in the second equation? A. 9 - x B. y - 9/2 C. 9 - 2y D. 1/2 y + 9

OpenStudy (anonymous):

c

OpenStudy (anonymous):

C. 9 - 2y

OpenStudy (anonymous):

i don't get this one to Solve the system x + y = 6 and x - y = 2. What is the value of x? A. 6 B. 2 C. 4 D. 0

OpenStudy (anonymous):

4

OpenStudy (anonymous):

New thread @bellasky08

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