3. Решите уравнение:
a)
5.23 + x = -7.24
x = -7.24 - 5.23
x = -12.47
б)
y -2 5/12= -3 7/15
y - 29/12 = -52/15
y = -52/15 + 29/12
y = -208+145/60
y = -63/60 = -1 3/60 = -1 1/20
3. Решите уравнение:
a)
5.23 + x = -7.24
x = -7.24 - 5.23
x = -12.47
б)
y -2 5/12= -3 7/15
y - 29/12 = -52/15
y = -52/15 + 29/12
y = -208+145/60
y = -63/60 = -1 3/60 = -1 1/20