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3 years ago

Show that the system has no solution. x + 2y = -4 y = -1/2x - 4

Mathematics

1 answer:

erica [24]3 years ago

7 0

Step-by-step explanation:

TO show that this system has no solution, use the y value in the second equation and put it in for y in the first. Then solve.

x + 2y = -4

x + 2(-1/2x - 4) = -4

x - x - 8 = -4

-8 = -4

Because this is an incorrect statement, we can tell there is no solution.

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Answer:

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Step-by-step explanation:

It helps if you have memorized the cubes of small integers. Of course, the ones needed here are ...

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3 years ago

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katrin2010 [14]

Answer: X = 7.

Step-by-step explanation: Move all terms that don't contain x to the right side and solve.

I'll go step-by-step.

1. Add 5 to both sides. 6x-(5+5)=37+5

2. Simplify 6x=42

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4. Then simplify/Divide. 42 / 6 = 7

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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