Question

Решите уравнение – 9 – (8x – 11) = 12

Answer 1

-9 -(8x - 11) = 12
-8x + 11 = 12 + 9
-8x + 11 = 21
-8x = 21 - 11
-8x = 10
x = 10 : (-8)
x = -1,25