Question

Розв'яжіть рівняння!¡!! будь ласка!1) |X|=2,8;. 2) -(-x)=9,4​

Answer 1

x=2,8

x=-2,8

x¹=-2,8

x²=2,8

Answer 2

1. |X| = 2.8

To solve this equation, we need to consider two cases: when X is positive and when X is negative.

Case 1: X is positive. If X is positive, then the equation simplifies to X = 2.8.

Case 2: X is negative. If X is negative, then the equation becomes -X = 2.8. To solve for X, we multiply both sides of the equation by -1 to change the sign: X = -2.8

So the solution to the equation |X| = 2.8 is X = 2.8 or X = -2.8.

2. -(-X) = 9.4

To solve this equation, we simplify the expression on the left side:

-(-X) = 9.4 Multiply -1 by -X: X = 9.4

Therefore, the solution to the equation -(-X) = 9.4 is X = 9.4.