BTSJoonie
BTSJoonie
03-11-2017
Mathematics
contestada
2x+8=7x-12 || -m/4+5=2 || 3x-8=-17 ||
Respuesta :
randgh
randgh
03-11-2017
2x+8=7x-12 we put the x in a side and the number in the other side
5x = 20
x= 20/5 = 4
-m/4+5=2
common denominator
-m /4 + 20/4 = 2/4
-m +20 = 2
m = 20-2 =18
3x-8=-17
3x = -17 +8
3x = -9
x= -9/3 = -3
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