3×+7-2 (2×+5) > 3×-7?? cara nya sama Himpunanya.... (dibawah ">" ada garis "_"bawahnya) .......makasih....sma himpunanya juga y....
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=3x+7-4x-10>_3x-7
=3x+7-4x-10-3x+7>_0
=-4x-4>_0
=-4x>_4
tandax dibalik karena di bagi dengan -
=x<_4/-4
=x<_-1
hp {x¦x<_-1}
trima kasih