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3 years ago

12

Two sevenths of a number subtracted from two fifths of that same number is 8. find the number

1 answer:

Allisa [31]3 years ago

7 0

2/7x - 2/5x = 8
multiply both sides by 35
= 10x - 14x = 280
combine 10x and 14x
= -4x = 280
divide both sides by -4
x= -70

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lorasvet [3.4K]

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