cyfmh
cyfmh
19-10-2017
Mathematics
contestada
90+6x-7.5x<30
please help me
Respuesta :
maddielr17
maddielr17
19-10-2017
ok so:
90 + 6x - 7.5x < 30
6x - 7.5x = -1.5
90 - 1.5x < 30
-90 -90
-1.5x < -60
-60/-1.5
x=40
40 < 30
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