Beta-blockers, alpha2-adrenergic agonists, and thiazide diuretics are associated with libido changes. Testosterone is the main hormonal mediator of a manâs libido. As testosterone levels decline, sexual desire decreases; therefore medications that affect testosterone can alter the libido. Finasteride and dutasteride, 5-alpha reductase inhibitors for the treatment of benign prostate hyperplasia (BPH), decrease dihydrotestosterone levels, the active metabolite of testosterone.
Solving an equation symbolically means that expressions that may contain known variables or possibly also variables not in the original equation are admitted as solutions. For example, the equation x + y = 2x â 1 is solved for the unknown x by the solution x = y + 1, because substituting y + 1 for x in the equation results in (y + 1) + y = 2(y + 1) â 1, a true statement.
situations in which you need to find missing information.For instance,Exercise 68 on page 174 shows how to use a linear equation to determine the height of a flagpole by measuring its shadow. Sergio Piumatti Equations and Solutions of Equations An equation in x is a statement that two algebraic expressions are equal. For example, and are equations. To solve an equation in x means to find all values of x for which the equation is true. Such values are solutions. For instance, is a solution of the equation because is a true statement. The solutions of an equation depend on the kinds of numbers being consid-ered. For instance, in the set of rational numbers, has no solution