Реши уравнения. х×4=56, 51÷у=3, х-19=6×7

4х=56                    х-19=42 х=56:4                   х=42-19         х=14                      х=23 51:у=3 у=51:3 у=17

X · 4 = 56                x = 56 : 4 x = 14 14 × 4 = 56        56 = 56 51 : у =3 у = 51 : 3 у = 17 51: 17 = 3          3 = 3 X - 19 = 6 × 7 X - 19 = 42 X = 42 + 19 X = 61 61 - 19 = 6 × 7         42 = 42