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x-0.19(x)=6.400
We move all terms to the left:
x-0.19(x)-(6.400)=0
We add all the numbers together, and all the variables
x-0.19x-(6.4)=0
We add all the numbers together, and all the variables
0.81x-6.4=0
We move all terms containing x to the left, all other terms to the right
0.81x=6.4
x=6.4/0.81
x=7+0.73/0.81
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