1 Answer

Will Custode · Answer 1 · 2022-09-02T18:48:01+0000

Answer:

y = 6

Explanation:

To find
, we need to eliminate
in this system of equations:

$3\cdot x + 2\cdot y = 27$ (1)

$3\cdot x - y = 9$ (2)

From (1) and (2):

$x = (27-2\cdot y)/(3)$

x = (9+y)/(3)

Then, we equalize both expressions and solve for
:

$(27-2\cdot y)/(3) = (9+y)/(3)$

$27-2\cdot y = 9 + y$

$3\cdot y = 18$

y = 6

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