Question

-0.4x+9=0 найти корень уравнения

Answer 1

-0.4x+9=0

-0.4x= - 9
x = -9 : (-0,4)
x = 22,5
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Answer 2

- 0.4х + 9 = 0
- 0.4х = - 9 / : ( - 0.4)
х = 22.5