How do you find the values of x and y given $[(2x, y, -y)]=[(-10, 3x, 15)]$ ?

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Answer 1 · 2017-03-29T19:51:55

Please see the explanation.

Given: $[(2x, y, -y)]=[(-10, 3x, 15)]$

Matching the first two elements of the two ordered triplicates:

$2x = -10$

$x = -5$

Matching the second two elements of the two ordered triplicates:

$y = 3x$

$y = 3(-5)$

$y = -15$

The does not conflict with the third two elements of the the two ordered triplicates:

$-y = 15$

$y = -15$

How do you find the values of x and y given [(2x, y, -y)]=[(-10, 3x, 15)][(2x, y, -y)]=[(-10, 3x, 15)]?