
In order to evaluate the given function at x = -3, simply replace "x" in the function with -3 and solve.

<em>Multiply -4 and -3 in the function above.</em>

<em>Add 3 on both sides of the equation.</em>


<em>Add 2y on both sides of the equation.</em>


<em>Divide both sides of the equation by -3.</em>


Therefore, at x = -3, the value of y = -5. Hence, f(-3) = -5.
Answer:
f(-3) = -5
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A triangles degrees add up to 180.
well first 180-138 for angle u which is 42
then do 42+(6y-2)+(8y+14)=180
solve for y.
42+(6y-2)+(8y+14)=180
42+6y-2+8y+14=180
54+14y=180
-54 -54
14y=126
/14 /14
y=9