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1. (-4, 1)

2. I substituted (y = x + 5) into (3x + y = -11) first before substituting the value of x into (y = x + 5) to find the value of y.

Step-by-step explanation:

Substitute y = x + 5 into 3x + y = -11:

3x + y = -11

3x + x + 5 = -11

4x + 5 = -11

4x = -11 - 5

    = -16

x = -16 ÷ 4

x = -4

Substitute x = 4 into y = x + 5:

y = x + 5

y = -4 + 5

y = 1

A coordinate point is written like this: (x, y)

Thus, the final answer is: (-4, 1)