Assume that y varies directly with x, then solve. If y=-18 when x=6, find x when y=6.

Answer:
The answer to your question is x = - 2
Step-by-step explanation:
This is a problem of direct proportions so,
y x
- 18 ⇒ 6
6 ⇒ ?
We do cross multiplication
x = [tex]\frac{6 x 6}{-18}[/tex]
Simplification
x = [tex]\frac{36}{-18}[/tex]
Result
x = -2