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12.8-2.2(2x+4)=1
We move all terms to the left:
12.8-2.2(2x+4)-(1)=0
We add all the numbers together, and all the variables
-2.2(2x+4)+11.8=0
We multiply parentheses
-4.4x-8.8+11.8=0
We add all the numbers together, and all the variables
-4.4x+3=0
We move all terms containing x to the left, all other terms to the right
-4.4x=-3
x=-3/-4.4
x=3/4.4
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