brad7330
20.04.2020 •
Mathematics
Solve-
10x + 9 = 4x - 9
Solved
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Ответ:
The answer is x=-3.
Step-by-step explanation:
10x+9=4x-9
10x-4x+9=4x-4x-9
6x+9=-9
6x-9+9=-9-9
6x=-18
x=-3
Ответ: