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debrielcalderon
04.08.2019 •
Mathematics
{3d−e=7d+e=5 use the linear combination method. the solution is (3, 2). there is no solution. the solution is (2, −1). there are infinitely many solutions.
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Ответ:
we are given system of equation as
We are given linear combination method
In linear combination method , we always try to cancel one variable by combining two equations
step-1: Add both equations
-----------------------------------
step-2: Divide both sides by 10
step-3: Solve for e
we can plug d=1
so, solution is (d,e)=(1,-2)..........Answer
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