(3x+4) - (4x-7)/5x+9= 3/2
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(3x+4)-(4x-7)/5x+9=3/2
(3x+4x)-(-7-4)/5x+9=3/2
7x-(-11)/5x+9=3/2
7x+11/5x+9=3/2
7x-5x/9-11=3/2
2x/-2=3/2
2x=3/2*-2
2x=3/-4
x=3/-4/2
x=3/-2
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