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21 February, 04:26

What is the resulting equation when the expression for y in the second equation is substituted into the first equation?

3x + y = 1

y = 6 - 4x

-x + 6 = 1

x + 6 = 1

7x + 6 = 1

+2
Answers (2)
  1. 21 February, 04:34
    0
    Take the second equation already set to y and substitute it into the first equation for y ...

    3x + (6 - 4x) = 1 ... now we simplify

    3x + 6 - 4x = 1 ... now combine like terms

    -x + 6 = 1 ...
  2. 21 February, 04:48
    0
    Y=6-4x

    sub 6-4x for y

    3x+y=1

    3x + (6-4x) = 1

    3x+6-4x=1

    3x-4x+6=1

    -x+6=1

    3rd option
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