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2-7x>0 helpppp me pleas33333

Răspuns :

2 - 7x > 0 => -7x > -2|·(-1) => 7x < 2 => x < 2/7 => x∈(-∞, 2/7)
2-7x>0
-7x>-2 /•(-1)
7x<2
x<7/2