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Mathematics 20 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 (anonymous):

multiply 1º equation by 3: 3x-3y =-9 add it to 2º equation: 4x=-4 so x= -1

OpenStudy (anonymous):

thanks :)

OpenStudy (anonymous):

yw

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