Solve the system by elimination:2x+3y=44x+6y=9

1 answer:

6 0

$\left \{ {2x+3y=4\ \ |*(-2)} \atop {4x+6y=9}} \right. \\\\ \left \{ {-4x-6y=-8} \atop {4x+6y=9}} \right. \\+------\\Elimination\ method\\\\
0 \neq 1\ \ \\This\ is\ not\ equal\ so\ there\ are\ no\ solutions.$

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Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

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