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Покрокове пояснення:
|x| = 2.8
This equation states that the absolute value of x is equal to 2.8. Since the absolute value is always positive, x can be either 2.8 or -2.8.
Therefore, the solutions to the equation are x = 2.8 and x = -2.8.
|x| = -1.6
Here, you have an equation where the absolute value is equal to a negative number. However, absolute values are always non-negative (i.e., greater than or equal to zero). Therefore, there are no solutions to this equation.
The equation |x| = -1.6 has no solutions.
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