Oblicz 9x-7i>3(3x-7u)
9x-7>3(3x-7u)
9x-7>9x-21u
9x-7-9x+21u>0
-7+21u>0
21u>7
u>1/3
u ∈(1/3; +∞)
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9x-7>3(3x-7u)
9x-7>9x-21u
9x-7-9x+21u>0
-7+21u>0
21u>7
u>1/3
u ∈(1/3; +∞)
licze na naj