Rozwiąż równanie: - ( x + 3 ) - ( 2x + 8 ) = ( -3 - 2x) + ( 2x + 1 )
- ( x + 3 ) - ( 2x + 8 ) = ( -3 - 2x) + ( 2x + 1 )
- x - 3 - 2x - 8 = - 3 - 2x + 2x + 1
-3x - 11 = - 2
-3x = -2 + 11
-3x = 9
x = 9 : (-3)
x = -3
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- ( x + 3 ) - ( 2x + 8 ) = ( -3 - 2x) + ( 2x + 1 )
- x - 3 - 2x - 8 = - 3 - 2x + 2x + 1
-3x - 11 = - 2
-3x = -2 + 11
-3x = 9
x = 9 : (-3)
x = -3