jazzc0108 jazzc0108
  • 24-10-2017
  • Mathematics
contestada

Solve this system of equations using substitution. Put your answer in ordered pair form, (x,y).

Solve this system of equations using substitution Put your answer in ordered pair form xy class=

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taniaorozco
taniaorozco taniaorozco
  • 24-10-2017
2x + 5y = 2
-3x - y =-3

-3x - y = -3
y = 3x - 3

substitute y = 3x - 3 into the first equation.

2x + 5y = 2
2x + 5(3x - 3) = 2
2x + 15x - 15 = 2
17x - 15 = 2

solve for x in 17x - 15 = 2

17x - 15 = 2
17x = 2 + 15
17x = 17
x = 1

substitute x = 1 into y = 3x - 3

y = 3x - 3
y = 3(1) - 3
y = 3 - 3
y = 0

(1, 0) << the answer

hope this helped, God bless!
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