nickhryhorak
nickhryhorak nickhryhorak
  • 15-01-2019
  • Mathematics
contestada

What is the solution of the system of equations? {4x−3y=152x+2y=4

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emi0260225
emi0260225 emi0260225
  • 15-01-2019
I hope this helps. You can write the answers as x=28 8/11 ; y=12 4/11
Ver imagen emi0260225
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sqdancefan
sqdancefan sqdancefan
  • 15-01-2019

Answer:

(x, y) = (3, -1)

Step-by-step explanation:

Multiply the second equation by 2 and subtract the first equation.

... 2(2x +2y) -(4x -3y) = 2(4) -(15)

... 7y = -7 . . . . . . simplify

... y = -1 . . . . . . . .divide by 7

Substitute this value into the second equation.

... 2x +2(-1) = 4

... 2x = 6 . . . . . . . add 2

... x = 3 . . . . . . . . divide by 3

The solution is (x, y) = (3, -1).

Answer Link

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