yokwegram00
yokwegram00 yokwegram00
  • 25-01-2017
  • Mathematics
contestada

Please explain : y = -x + 8. y = 4x - 7 solve system of equation?

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apologiabiology
apologiabiology apologiabiology
  • 25-01-2017
since both equatl y set them equal toeach other

8-x=y=4x-7
8-x=4x-7
add x both sides
8=5x-7
add 7 to both sides
15=5x
divide by 5
3=x

sub back

y=-x+8
y=-3+8
y=5

the solution is
(x,y)
(3,5)


Answer Link
dnso dnso
  • 25-01-2017
I thin x=3 and y=5. If I have enough time I will include the steps
Answer Link

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