3 years ago

Solve 9x−y=45 for y.

1 answer:

Taya2010 [7]3 years ago

4 0

So to solve for y, we need to get y alone on one side of the equation. So we are going to subtract 9x from both sides of the equation to get:

$-y=-9x+45$

And since y is negative, we are going to divide both sides by -1 in order to make the y positive:

$y=9x-45$

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