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damaskus [11]
3 years ago
12

80 decreased by 3 times a number is the same as 5 times the number increased by 8 find the number.

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0

Answer:

The number is 5.

Step-by-step explanation:

Let the number be $ x $.

Given $ 80 $ is decreased $ 3 $ times $ x $.

$ \implies 80 - 3x $

$ 5 $ times the number increased by $ 8 $.

$ 5(x + 8) $

This means:

$ 8 - 3x = 5(x + 8) $

$ \implies 8x = 40 $

$ \implies x = 5 $

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