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.
The solution of the pair of simultaneous equations. 3x+2y = 36, and 5x+4y = 64. is x = 8 and y = 6. This is easily veriï¬ed by substituting these values into the left-hand sides. to obtain the values on the right. So x = 8, y = 6 satisfy the simultaneous equations. 2. Solving a pair of simultaneous equations. There are many ways of solving simultaneous equations. Perhaps the simplest way is elimina-. tion.