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OpenStudy (anonymous):
2x + y = 7 5x + y = 9 Solve the system of equations.
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OpenStudy (uri):
2x + y = 7 5x + y = 9 Add them and get the value of x.
OpenStudy (luigi0210):
multiply the top by a -1, then add the two equations and that should help you solve for x
OpenStudy (rmrjr22):
you have to get x or y by itself... to do this you need to make one variable cancel out the other. So you multiply one or both of the equations by a -1 or 2 or -3... anything that works
OpenStudy (anonymous):
ok thanks
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