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4 Answers
- Carl NLv 78 years agoFavorite Answer
The key to solving both problems is to isolate X on one side and the numbers on the other. In the first problem, subtract 1/5 from the left side and x/4 from the right side to make: x/2-x/4=3/20
Then, multiply each side by 4 to make 2x-x=12/20 or x=3/5
In the second, divide each side by 7 to make x=81/7
- Anonymous8 years ago
3/5
and its 81/7
Source(s): in algebra 2 - 4 years ago
The golden rule of algebra is: what you do to one edge of the equation you ought to do to the different. Doing so keeps the two sides equivalent. So, in case you multiply one component by means of 5, you ought to multiply the different component by means of an identical selection.
