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Mathematics 7 Online
OpenStudy (anonymous):

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

OpenStudy (jit4won):

subtract both equations

OpenStudy (jit4won):

you get - 4y = -8 or y = 2

OpenStudy (jit4won):

put y = 2 in 1st equation

OpenStudy (jit4won):

you get x = -1

OpenStudy (jit4won):

add me if you want

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