In order to have the variable by itself you have to add 20 to both sides. So your answer would be a=b+20. I hope this helps love! :)
(4.2*105)+(5.3*10^5)
441 + 530000
530441
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If your problem is (4.2*10^5)+(5.3*10^5), it would be
420000 + 530000
950000
Start off by adding or subtracting your like terms then combine them all the divide for x to get your answer
Simply subtract 0.89 from 92.99 meters:
<span>92.99 - 0.89 = 92.10 </span>
