Question

PLZ HURRY 8. Find y when x = 3, if y = -4 when x = -9.

Answer 1

Answer:

The answer is 13

Step-by-step explanation:

$3 = - 4 \\ - 9 = y \\ if \: you \: cross \: multiply \: you \: have \frac{3y}{3} = \frac{36}{3} which \: will \: give \: you \: 13$

Answer 2

Answer:

x = 3, y = 8.

Step-by-step explanation:

So if x = 3, and y = ?,

Its the same as if y = -4 when x = -9.

Find the difference between 3 and -9.

3 - (-9) = 12 because when you subtract a negative number, the second negative sign flips the direction your going on the number line. We just found the absolute value. Now the oppisite of 12 is -12. Final answer is -12.

Let's do the same thing to the -4, but subtract -12.

-4 - (-12) = 8.

So if x = 3, y = 8