Happygirl5715
06.07.2019 •
Mathematics
What is the solution of systems of equations 2x -y=7 y=2x+3
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Ответ:
This system has no solution.
Step-by-step explanation:
The equation y=2x+3 has already been solved for y, so we can substitute (2x+3) for y in the other equation, 2x - y = 7: 2x - (2x + 3) = 7. But note that simplifying this last result turns out -3 = 7, which is of course impossible. Thus, this equation has no solution.
Ответ: