What is the value of the x-coordinate that is 9 units to the left of (5, − 8) ?
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(-4,-8)

X is the first number, y is the second number.

Step-by-step explanation:

-4

Explanation:

The x-coordinate of (5, -8) is 5. (Always the first number)

Left means less or subtract. (Like on a number line. When moving to the left, the numbers are getting smaller.)

9 to the left of 5 is the same as 5 - 9.

5 - 9 = -4

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11