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1890867078(4.2062a)+4.07206630475=4a+5
We move all terms to the left:
1890867078(4.2062a)+4.07206630475-(4a+5)=0
We add all the numbers together, and all the variables
1890867078(+4.2062a)-(4a+5)+4.07206630475=0
We multiply parentheses
7563468312a-(4a+5)+4.07206630475=0
We get rid of parentheses
7563468312a-4a-5+4.07206630475=0
We add all the numbers together, and all the variables
7563468308a-0.92793369525=0
We move all terms containing a to the left, all other terms to the right
7563468308a=0.92793369525
a=0.92793369525/7563468308
a=0.92793369525/7563468308
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