3 years ago

Xy = 6 | 2x – y = 1 Solve each system by substitution

Mathematics

1 answer:

AnnZ [28]3 years ago

7 0

Answer: {x,y} = {2,-4}

[1] x - y = 6

[2] 2x + y = 0

Step-by-step explanation:

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3 years ago

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nlexa [21]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

What is the answer to 9x8 2/3

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The answer is 78. This is because you change 8 2/3 into a improper fraction which is 26/3. Then do 26/3×9/1. You should cross cancel so cancel out 3 and change it into 1 and change 9 into 3. So now your problem is 26×3=78.
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7 0

3 years ago

Read 2 more answers

What is the answer?

hammer [34]

Answer:

$x = 27$

Step-by-step explanation:

Angle A and angle E are the same value, therefore you could replace angle E with angle A. So that would make a triangle with angle C, angle D, and angle A. Knowing the sum of all angles in a triangle is 180, we can make an equation representing this.

$3x - 10 + 2x + 10 + 45 = 180$

Now simply silve the equation to find x.

$5x + 45 = 180 \\ 5x = 135 \\ x = 27$

There is your answer.

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2 years ago