rosiemay2008 rosiemay2008

18-10-2016
Mathematics

contestada

Solve the following equation
3(2x+7)=9

Respuesta :

texaschic101 texaschic101

18-10-2016

3(2x + 7) = 9 ...divide both sides by 3
2x + 7 = 9/3
2x + 7 = 3
2x = 3 - 7
2x = -4
x = -4/2
x = -2

or this way..
3(2x + 7) = 9
6x + 21 = 9
6x = 9 - 21
6x = - 12
x = -12/6
x = -2

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