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-4.2x+31.4=65.2
We move all terms to the left:
-4.2x+31.4-(65.2)=0
We add all the numbers together, and all the variables
-4.2x-33.8=0
We move all terms containing x to the left, all other terms to the right
-4.2x=33.8
x=33.8/-4.2
x=-8+0.2/4.2
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