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0.4+6.11x=-5
We move all terms to the left:
0.4+6.11x-(-5)=0
We add all the numbers together, and all the variables
6.11x+5.4=0
We move all terms containing x to the left, all other terms to the right
6.11x=-5.4
x=-5.4/6.11
x=-3.8571428571429/4.3642857142857
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