SOLUTION: Add or subtract as indicated.write all answers in lowest terms. 5/12+4x-7/9+3x

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Add or subtract as indicated.write all answers in lowest terms. 5/12+4x-7/9+3x      Log On


   

Question 92448: Add or subtract as indicated.write all answers in lowest terms.


5/12+4x-7/9+3x
Found 2 solutions by anraymer, stanbon:
Answer by anraymer(35) About Me  (Show Source):
You can put this solution on YOUR website!
5%2F%2812%2B4x%29-7%2F%289%2B3x%29
Start by finding a common denominator, in this case, 36 + 12x:
%283%2F3%29%2A%285%2F%2812%2B4x%29%29+-+%284%2F4%29%2A%287%2F%289%2B3x%29%29
15%2F%2836%2B12x%29+-+28%2F%2836%2B12x%29
Now that they have the same denominator, you can simplify:
%2815-28%29%2F%2836%2B12x%29
-13%2F%2836%2B12x%29

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
5/12+4x-7/9+3x
= 7x + (5/12 - 7/9)
= 7x + [(45-84)/108]
= 7x - (39/108)
= 7x - (13/36)
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Cheers,
Stan H.