Question

Solve the following system using the addition method:

Answer 1

Answer:

(x, y) = (1, 1)

Step-by-step explanation:

$-27x + 6y = -21$ --- (1)

$-12x +3y = -9$ --- (2)

Multiplying (2) by -2 to get:

$24 x - 6 y = 1 8$ --- (3)

Adding (1) and (3) to get:

$-27x + 6y = -21$

$24x-6y=18$

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$-3x=-3$

x = 1

Finding y:

$-12(1) +3y = -9$

$3y=-9+12$

$3y=3$

y = 1

Therefore, (x, y) = (1, 1).

Answer 2

(X,Y)= (1,1)

Explanation: