27 - (x + 1.125x) = 12
27 - 2.125x = 12
Subtract 27 from both sides:
-2.125x = -15
Divide by -2.125:
x = 7.06
Ответ: x = 7.06
27 - (x + 1.125x) = 12
27 - 2.125x = 12
Subtract 27 from both sides:
-2.125x = -15
Divide by -2.125:
x = 7.06
Ответ: x = 7.06