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0.9x+5.1x-7=2(2.5-
We move all terms to the left:
0.9x+5.1x-7-(2(2.5-)=0
We add all the numbers together, and all the variables
0.9x+5.1x-7-(20=0
We add all the numbers together, and all the variables
6x=0
x=0/6
x=0
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