a) (3x + 5x) × 18 = 1448x × 18 = 144144x = 144x = 1
Ответ: x = 1
б) (7y - 3y) ÷ 8 = 174y ÷ 8 = 17y = 17 * 8 / 4y = 34
Ответ: y = 34
a) (3x + 5x) × 18 = 144
8x × 18 = 144
144x = 144
x = 1
Ответ: x = 1
б) (7y - 3y) ÷ 8 = 17
4y ÷ 8 = 17
y = 17 * 8 / 4
y = 34
Ответ: y = 34