а) x - 2.8 = -1.6x = -1.6 + 2.8x = 1.2
б) 4 + 5/12 + y = -5 - 3/204 + 5/12 + y = -5 - 3/204 + 5/12 + y = -5 - 3/204 + 5/12 + y = -100/20 - 3/204 + 5/12 + y = -103/20y = -103/20 - 4 - 5/12y = -103/20 - 80/20 - 10/20y = -193/20 - 10/20y = -203/20
Ответ: а) x = 1.2, б) y = -203/20
а) x - 2.8 = -1.6
x = -1.6 + 2.8
x = 1.2
б) 4 + 5/12 + y = -5 - 3/20
4 + 5/12 + y = -5 - 3/20
4 + 5/12 + y = -5 - 3/20
4 + 5/12 + y = -100/20 - 3/20
4 + 5/12 + y = -103/20
y = -103/20 - 4 - 5/12
y = -103/20 - 80/20 - 10/20
y = -193/20 - 10/20
y = -203/20
Ответ: а) x = 1.2, б) y = -203/20