When two goods are substitutes, a change in the price of one will cause a change in the demand for the other in the direction.

In the same direction

Explanation:

A substitute good is a good that can be used in place of another. Also, substitutes are goods that a consumer perceives as similar or comparable, so that having more of one good causes the consumer to desire less of the other good.  

However ,in terms of the changes in price of the substitute goods, as the price of one good rises, the demand for the substitute good increases. For example, if the price of coffee increases, consumers may purchase less coffee and more tea.

contributions made after 1986. after-tax contributions to employer plans made after 1986 are recovered pro rata with taxable amounts. the remaining $80,000 is from pre-tax contributions, employer matching dollars, and earnings on those amounts.

u = 30

continuing your method

= +

subtract from both sides

= - thus

= -

= ⇒ u = 30