cgrodner1 cgrodner1
  • 04-09-2019
  • Mathematics
contestada

The sum of two numbers is 2. The sum of three times the larger and twice the smaller is 14. Find the numbers.

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carlosego
carlosego carlosego
  • 04-09-2019

For this case we have to:

x: Be the variable that represents the largest number

y: Be the variable that represents the smallest number

We propose a system of equations:

[tex]x + y = 2\\3x + 2y = 14[/tex]

From the first equation we have to:

[tex]x = 2-y[/tex]

Substituting in the second equation:

[tex]3 (2-y) + 2y = 14\\6-3y + 2y = 14\\6-y = 14\\-y = 14-6\\-y = 8\\y = -8[/tex]

We look for the value of "x":

[tex]x = 2 - (- 8)\\x = 2 + 8\\x = 10[/tex]

Answer:[tex]x = 10\\y = -8[/tex]

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