Х+120=45*6 у*20=450+120+130

1) X + 120 = 45 × 6 X + 120 = 270 X = 270 - 120 X =150______________ 150 + 120 = 45 × 6 270 = 2702) y × 20 = 450 + 120 + 130 у × 20 = 700 у = 700 : 20 у = 35_____________________ 35 × 20 = 450 + 120 + 130 700 = 700