4 years ago

4x + y = 8

Mathematics

1 answer:

erik [133]4 years ago

5 0

<h3>Answer:</h3>

6x - 9(-4x + 8) = 12

<h3>Step-by-step explanation:</h3>

Solving the first eqution for y, you have

... y = -4x +8

Substituting that into the equation

... 6x -9y = 12

you have ...

... 6x -9(-4x +8) = 12 . . . . . . . matches the 3rd choice.

_____

<em>Comment on the question</em>

The given equation is 6y -9y = 12, something entirely different from 6x -9y = 12. None of the answer choices apply to the equations given in your problem statement.

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