1/4x=1/2 x = 1/2 : 1/4 x = 1/2 * 4/1 x = 2 ---------------------- 1/4 *2 = 1/2 б) 2/9y=0 y = 0:2/9 y=0 -------------- 2/9 *0 = 0 в) -2/7z=-2/7 z = - 2/7 : - 2/7 z = -2/7 * - 7/2 z = 1 ------------------ -2/7 * 1 = - 2/7 г)2x= -1/3 x = - 1/3 : 2 x = - 1/3 * 1/2 x = -1/6 ------------------- 2 * -1/6 = -1/3 д) 1/8y=4 y = 4:1/8 y = 4/1 * 8/1 y = 32 ------------------- 1/8 *32 = 4 м) -6u=2/3 u = 2/3 : -6 u = -2/3 * 1/6 u = -1/9 ----------------------------- -6 * -1/9 = 2/3
