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4x + 8y=20 3x+6y=15 solve this system of equations
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4x + 8y=20 3x+6y=15 solve this system of equations
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Feb 14, 2018
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4x + 8y=20
3x+6y=15
solve this system of equations
Mathematics
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Vadeg
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Vadeg
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Peter Flannery
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Feb 15, 2018
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Peter Flannery
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4x=20-8y
x=5-2y now use this value of x in the second equation...
3(5-2y)+6y=15
15-6y+6y=15
15=15 This is true for any y or x value.
So there are infinitely many solutions as the two equations describe the same line.
Steve Coleman
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Feb 20, 2018
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