( 326 - Z ) : 5 = 43
326 - Z = 43 * 5
326 - Z = 215
Z = 326 - 215
Z = 111
3976:(512-484)×43+375659=381765
(36845+19560-46535):47=210
84:12= 7
18*15=270
180+72=252
84:6*2=14*2=28
18*10+5=180+5=185
45*12=540
28*9 =252
45*2*6=90*6=540
(1/4 - 2/3) * (4/5 - 2/15) * (-3/5) = 1/6
1) 1/4 - 2/3 = 3/12 - 8/12 = - 5/12
2) 4/5 - 2/15 = 12/15 - 2/15 = 10/15 = 2/3
3) - 5/12 * 2/3 = - (5*1)/(6*3) = - 5/18
4) - 5/18 * (-3/5) = 3/18 = 1/6
4 луча
А)Да можно ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,