3+1.1(10x+9)=-(-x+6.4)

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Solution for 3+1.1(10x+9)=-(-x+6.4) equation:



3+1.1(10x+9)=-(-x+6.4)
We move all terms to the left:
3+1.1(10x+9)-(-(-x+6.4))=0
We add all the numbers together, and all the variables
1.1(10x+9)-(-(-1x+6.4))+3=0
We multiply parentheses
11x-(-(-1x+6.4))+9.9+3=0
We calculate terms in parentheses: -(-(-1x+6.4)), so:
-(-1x+6.4)
We get rid of parentheses
1x-6.4
We add all the numbers together, and all the variables
x-6.4
Back to the equation:
-(x-6.4)
We add all the numbers together, and all the variables
11x-(x-6.4)+12.9=0
We get rid of parentheses
11x-x+6.4+12.9=0
We add all the numbers together, and all the variables
10x+19.3=0
We move all terms containing x to the left, all other terms to the right
10x=-19.3
x=-19.3/10
x=-1+7.1538461538462/7.6923076923077

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