Translate the word phrase into a variable expression.
1 answer:
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So these are our two equations:
Before we can use elimination, subtract y on both sides of the first equation:
Now we are able to use elimination. To eliminate the y variable, add the two equations together to get . From here we can solve for x.
For this, just divide both sides by 3 and your first answer will be
Now that we have the value of x, substitute it into either equation to solve for y:
<u>In short, x = 3 and y = 6.</u>