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tamozhnik
@tamozhnik
July 2022
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(1/5)^21-2x =25^3x+7
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ShirokovP
Verified answer
5^(- (21 - 2x)) = 5^(2(3x + 7))
- (21 - 2x) = 2(3x + 7)
2x - 21 = 6x + 14
2x - 6x = 21 + 14
- 4x = 35
x = - 8,75
7 votes
Thanks 25
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Answers & Comments
Verified answer
5^(- (21 - 2x)) = 5^(2(3x + 7))- (21 - 2x) = 2(3x + 7)
2x - 21 = 6x + 14
2x - 6x = 21 + 14
- 4x = 35
x = - 8,75