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25-4x=2.2
We move all terms to the left:
25-4x-(2.2)=0
We add all the numbers together, and all the variables
-4x+22.8=0
We move all terms containing x to the left, all other terms to the right
-4x=-22.8
x=-22.8/-4
x=5+1/1.4285714285714
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