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Serena3027 Serena3027
  • 17-09-2015
  • Mathematics
Answered

X = y -3

X + 3y = 13


What is the solution to the system of equations?

A(1,4)
B(4,1)
C(7,4)
D(2.5,5.5)

Verified Answer :

ayah1
ayah1 ayah1
  • 17-09-2015

x = y - 3

x + 3y = 13


x + 3y = 13    (replace x with y-3)

y - 3 + 3y = 13

4y - 3 = 13

4y = 13 + 3

4y = 16

y = 16/4

y = 4



x = y - 3

x = 4 - 3

x = 1


The answer is A. (1,4)

Answer Link

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