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2.5x-3+2.5x-3+2.5x-3+2.5x-3=2.2x-2+2.2x-2+2.2x-2
We move all terms to the left:
2.5x-3+2.5x-3+2.5x-3+2.5x-3-(2.2x-2+2.2x-2+2.2x-2)=0
We add all the numbers together, and all the variables
2.5x+2.5x+2.5x+2.5x-(6.6x-6)-3-3-3-3=0
We add all the numbers together, and all the variables
10x-(6.6x-6)-12=0
We get rid of parentheses
10x-6.6x+6-12=0
We add all the numbers together, and all the variables
3.4x-6=0
We move all terms containing x to the left, all other terms to the right
3.4x=6
x=6/3.4
x=1+2.6/3.4
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