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BritangVans BritangVans
  • 06-02-2017
  • Mathematics
Answered

A number minus two times another number is 4. three times the first number plus two times the second number is 12. set up the system of equations to find the numbers.

Verified Answer :

christinann062
christinann062 christinann062
  • 06-02-2017

x= first number y= second number

x-2y=4

3x+2y=12

Answer Link
meegjk
meegjk meegjk
  • 06-02-2017

x-2y = 4
3x+2y = 12
So, x =  4+2y
3(4+2y) + 2y -> 12 + 8y, so y = 0
x-2(0)= 4, so x=4

Answer Link

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