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22 votes
22 votes
Calcula el valor de “x” en:
5(3x – 4) – 17 = 5(x + 8) – 17

User Andy J Buchanan
by
2.9k points

1 Answer

14 votes
14 votes

Answer: x = 6

Explanation:

Sume 17 a ambos lados

5(3x-4)-17 + 17=5(x+8)-17 +17

Simplifica

5(3x-4)=5(x+8)

Expandir 5(3x -4) : 15x - 20

Expandir 5(x+8) : 5x +40

15x - 20 = 5x +40

Sume 20 a ambos lados

15x - 20 + 20 = 5x +40 +20

Simplifica

15x = 5x +60

Restar 5 de ambos lados

15x - 5x = 5x + 60 - 5x

Simplifica

10x = 60

Divide ambos lados entre 10

10x/10 = 60/10

Simplifica

x = 6

User Matthewsheets
by
2.7k points
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