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x-0.7x=79
We move all terms to the left:
x-0.7x-(79)=0
We add all the numbers together, and all the variables
0.3x-79=0
We move all terms containing x to the left, all other terms to the right
0.3x=79
x=79/0.3
x=263+0.10000000000001/0.3
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