1/4 of the difference of 6 and a number is 200

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1/4 of the difference of 6 and a number is 200

Take this algebraic expression in 4 parts:

1. The phrase a number means an arbitrary variable, let's call it x
2. The difference of 6 and a number means we subtract x from 6: 6 - x
3. 1/4 of the difference means we divide 6 - x by 4: (6 - x)/4
4. Finally, the phrase is means an equation, so we set (6 - x)/4 equal to 200

(6 - x)/4 = 200