isabelobr18
isabelobr18
24-08-2017
Mathematics
contestada
whats the solution of the equation
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musiclover10045
musiclover10045
24-08-2017
3x+9-7x=2(x+6)
3x-7x = -4x
-4x+9 =2x+12
9=6x+12
-3 = 6x
x=-3/6 = - 1/2
x = - 1/2
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