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13-(2x+8)-(2-5x)=2.8
We move all terms to the left:
13-(2x+8)-(2-5x)-(2.8)=0
We add all the numbers together, and all the variables
-(2x+8)-(-5x+2)+13-(2.8)=0
We add all the numbers together, and all the variables
-(2x+8)-(-5x+2)+10.2=0
We get rid of parentheses
-2x+5x-8-2+10.2=0
We add all the numbers together, and all the variables
3x+0.2=0
We move all terms containing x to the left, all other terms to the right
3x=-0.2
x=-0.2/3
x=-0.2/3
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