x/2+3/4(x-x/2)+9 find x
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Answer:
x/2+3/4 (x-x/2)+9=0
x/2+3/4×(2x-x/2)+9=0
x/2+(6x-3x/8)+9=0
(8x+12x-6x)/16+9=0
14x/16+9=0
7x/8+9=0
7x+72/8=0
7x+72=0
7x= -72
x= -72/7
x= -10.2
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