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0.3x-0.2(2x+5)=0.4
We move all terms to the left:
0.3x-0.2(2x+5)-(0.4)=0
We add all the numbers together, and all the variables
0.3x-0.2(2x+5)-0.4=0
We multiply parentheses
0.3x-0.4x-1-0.4=0
We add all the numbers together, and all the variables
-0.1x-1.4=0
We move all terms containing x to the left, all other terms to the right
-0.1x=1.4
x=1.4/-0.1
x=-13+0.1/0.1
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