2/3 of a number is 20 less than the original number. find the number.
Answers
Answered by
1
Answer:
12
Step-by-step explanation:
Let y be the original number
2/3 of y=20-y
2y/3=20-y
2y=60-3y
5y=60
y=12
Answered by
3
2/3 of a number = 20- any number
let the number be x
2/3×x=20-x
2×x/3=20-x
2x=3[20-x]
2x=60-3x
2x+3x=60
5x=60
x=60/5
x=12
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