👤

-7+4,9x>0 ??
8x-16>0????


Răspuns :

-7+49/9x>0=> 49/9x>7=> x>9×7/49=> x>9/7
8x>16=> x>2
-7+4,9x>0
4,9x>0+7
4,9x>7
x>7:4,9
x>1,4285.....

8x-16>0
8x>0+16
8x>16
x>16:8
x>2