-x + 11 - 4x = -x + 10x +11

5 - 3x -2(4x -1) =40

(x + 0.5) - (2x - 3) = 9

[tex]\frac{2- x }{7} = \frac{3 + x }{14}[/tex]
помогите пожалуйста =D
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