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123456777788899990-f=1234567890000000000000012345
We move all terms to the left:
123456777788899990-f-(1234567890000000000000012345)=0
We add all the numbers together, and all the variables
-1f+27-1.2345678898765E=0
We add all the numbers together, and all the variables
-1f+23.64409653895=0
We move all terms containing f to the left, all other terms to the right
-f=-23.64409653895
f=-23.64409653895/-1
f=23+0.64409653895/1
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