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-8.7+4x-6.6+2x-2.1=5.2+7x+1.2
We move all terms to the left:
-8.7+4x-6.6+2x-2.1-(5.2+7x+1.2)=0
We add all the numbers together, and all the variables
4x+2x-(7x+6.4)-8.7-6.6-2.1=0
We add all the numbers together, and all the variables
6x-(7x+6.4)-17.4=0
We get rid of parentheses
6x-7x-6.4-17.4=0
We add all the numbers together, and all the variables
-1x-23.8=0
We move all terms containing x to the left, all other terms to the right
-x=23.8
x=23.8/-1
x=-23+0.8/1
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