rebeccabarraza
rebeccabarraza
18-09-2014
Mathematics
contestada
How do you solve -117=7(3x+4)+2
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Geekhawk
Geekhawk
18-09-2014
The answer is -7.
-117=7(3x+4)+2= -117=21x+28+2 = 0=21x+147 = -21x=147=-7
You first solve the numbers in the parentheses,add 177 to each side,minus 21 from each side then divide 147 by -21.
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