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OpenStudy (anonymous):
Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = -1
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OpenStudy (solomonzelman):
multiply the first equation times 2, and you will see that there is no solution.
OpenStudy (solomonzelman):
because 4x+2y, will be equal to 2 and to -1 at the same time, which would mean that 2=-1
OpenStudy (anonymous):
Thank you @SolomonZelman
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