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ioangiqueenkiarose ioangiqueenkiarose
  • 23-11-2016
  • Mathematics
Answered

Solve the following system.

y = x + 3

4x + y = 18


(6, 3)


(3, 6)


(−3, 6)


(3, −6)

Verified Answer :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 23-11-2016

y = x + 3 . . . (1)
4x + y = 18 . . . (2)

Putting (1) into (2) gives
4x + x + 3 = 18
5x = 18 - 3 = 15
x = 15/5 = 3
x = 3
y = x + 3 = 3 + 3 = 6

Solution = (3, 6)

Answer Link
amccrutcheon amccrutcheon
  • 27-06-2018

the answer is 3,6 this was easy

Answer Link

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