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0.5x+72.8=287
We move all terms to the left:
0.5x+72.8-(287)=0
We add all the numbers together, and all the variables
0.5x-214.2=0
We move all terms containing x to the left, all other terms to the right
0.5x=214.2
x=214.2/0.5
x=428+0.19999999999999/0.5
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