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Instructions:Select the correct answer from each drop-down menu. Consider this system of linear equations: 22x − y = -23 (equation 1) 11x + 12y = 1 (equation 2) To find the value of x, you need to substitute in equation 2. The value of x is .

Respuesta :

The given system of equations is
22x - y = -23         (1)
11x + 12y = 1           (2)

Write (1) as
y = 22x + 23         (3)

Substitute (3) into (2).
11x + 12(22x + 23) = 1
11x + 264x + 276 = 1
275x = 1 - 276 = -275
x = -1

From (3), obtain
y = 22*(-1) + 23 = 1

Answer:  x = -1

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