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Mathematics 10 Online
OpenStudy (anonymous):

What is the value of the y variable in the solution to the following system of equations? 5x + 3y = 7 3x - 5y = -23

OpenStudy (anonymous):

Solve for x in the first eqn. Plug that answer in for x in the second eqn. Solve for y. Whatever that y-value is, plug that in to the first eqn and solve for x.

OpenStudy (anonymous):

or you can use matrices....

OpenStudy (anonymous):

1st eqn: y = 7/3-5x/3. Plug that in for y in the second eqn and solve for x.

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