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3.6x-12.8-7.5x+11.4x=-1-26.8
We move all terms to the left:
3.6x-12.8-7.5x+11.4x-(-1-26.8)=0
We add all the numbers together, and all the variables
3.6x-7.5x+11.4x-12.8-(-27.8)=0
We add all the numbers together, and all the variables
7.5x+15=0
We move all terms containing x to the left, all other terms to the right
7.5x=-15
x=-15/7.5
x=-2
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