2.6+0.9x=-(-x-2.1)

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Solution for 2.6+0.9x=-(-x-2.1) equation:



2.6+0.9x=-(-x-2.1)
We move all terms to the left:
2.6+0.9x-(-(-x-2.1))=0
We add all the numbers together, and all the variables
0.9x-(-(-1x-2.1))+2.6=0
We calculate terms in parentheses: -(-(-1x-2.1)), so:
-(-1x-2.1)
We get rid of parentheses
1x+2.1
We add all the numbers together, and all the variables
x+2.1
Back to the equation:
-(x+2.1)
We get rid of parentheses
0.9x-x-2.1+2.6=0
We add all the numbers together, and all the variables
-0.1x+0.5=0
We move all terms containing x to the left, all other terms to the right
-0.1x=-0.5
x=-0.5/-0.1
x=+5

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