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(-5.4)-7.8x=(78.408)
We move all terms to the left:
(-5.4)-7.8x-((78.408))=0
We add all the numbers together, and all the variables
-7.8x-83.808=0
We move all terms containing x to the left, all other terms to the right
-7.8x=83.808
x=83.808/-7.8
x=-10+3.21238938053/4.31415929204
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