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Aflati x€N stiind ca: a) 5(x+1)-4x>3 b) 8x+5>5x+3 c) 5(x+1)-4x≥3x+2

Răspuns :

a) 5(x+1)-4x>3
5x+5-4x>3
x+5>3
x>3-5
x>-2

b) 8x+5>5x+3
8x-5x>3-5
3x>-2
x>-2/3
x>~0,666667

c) 5(x+1)-4x_>3x+2
5x+5-4x_>3x+2
x+5_>3x+2
x-3x_>2-5
-2x_>-3
x_<3/2
x_<1,5

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