Question

Решите пожалуйста!!!

Answer 1

a) x + 21 = 7 
x = 7 - 21
x = -14 
б) 32 + x = -25
x = -25 - 32
x = - 57
в) x + 12.5 = -7.5
x = -7.5 - 12.5
x = -20

2. 0.7 - 0.2 - 1.6 + 0.3 - 0.4 = -1.2
б) - 3 + 0.9 - 1.4 - 0.2 + 6.1 = 2.4
в) - 1/3 - 1/3 - 1/3 = -1
г) -2/5 - 2/5 - 2/5 - 2/5 = - 1 3/5

Answer 2

Прости....