edolieyu2
edolieyu2 edolieyu2
  • 19-06-2017
  • Mathematics
contestada

0.5(x−12)+0.2(x+7)=0.3x+3.4
x=

12x(x+2)−5(2x−1)
x=

3 1/8 ÷(x−4 7/28 )= 17/18 +1 5/6
x=

please answer this in less then 20 minutes!

Respuesta :

Аноним Аноним
  • 20-06-2017
I only know number one and three.
1. x=20
3. x= 4.95
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